2020 |
Bougatef, Zina; Abdelkrim, Nouceyba; Aitouche, Abdel; Abdelkrim, Mohamed Naceur Sensor Fault Detection and Estimation Based on UIO for LPV Time Delay Systems Using Descriptor Approach Book Chapter Derbel, Nabil; Ghommam, Jawhar; Zhu, Quanmin (Ed.): Diagnosis, Fault Detection & Tolerant Control, p. 55–69, Springer Singapore, Singapore, 2020, ISBN: 978-981-15-1746-4. Résumé | Liens | BibTeX | Étiquettes: @inbook{Bougatef2020, title = {Sensor Fault Detection and Estimation Based on UIO for LPV Time Delay Systems Using Descriptor Approach}, author = {Zina Bougatef and Nouceyba Abdelkrim and Abdel Aitouche and Mohamed Naceur Abdelkrim}, editor = {Nabil Derbel and Jawhar Ghommam and Quanmin Zhu}, url = {https://doi.org/10.1007/978-981-15-1746-4_3}, doi = {10.1007/978-981-15-1746-4_3}, isbn = {978-981-15-1746-4}, year = {2020}, date = {2020-01-01}, booktitle = {Diagnosis, Fault Detection & Tolerant Control}, pages = {55--69}, publisher = {Springer Singapore}, address = {Singapore}, abstract = {This work investigates fault detection of linear parameter-varying (LPV) systems with varying time delay. An unknown input observer (UIO) is designed here to estimate faults and to generate residuals. Based on the descriptor approach, we elaborate an augmented system which considers faults as auxiliary. Only sensor faults are considered in this work and then estimated and detected using a delayed observer. The convergence of the observer is analyzed in terms of Lyapunov quadratic stability by generating linear matrix inequalities (LMIs). The work closes by applying the proposed approach to a delayed truck--trailer system with sensor faults.}, keywords = {}, pubstate = {published}, tppubtype = {inbook} } This work investigates fault detection of linear parameter-varying (LPV) systems with varying time delay. An unknown input observer (UIO) is designed here to estimate faults and to generate residuals. Based on the descriptor approach, we elaborate an augmented system which considers faults as auxiliary. Only sensor faults are considered in this work and then estimated and detected using a delayed observer. The convergence of the observer is analyzed in terms of Lyapunov quadratic stability by generating linear matrix inequalities (LMIs). The work closes by applying the proposed approach to a delayed truck--trailer system with sensor faults. |
Tellili, A; Abdelkrim, N; Challouf, A; Elghoul, A; Abdelkrim, MN Fault-Tolerant Control of Two-Time-Scale Systems incollection Diagnosis, Fault Detection & Tolerant Control, p. 235–264, Springer, 2020. BibTeX | Étiquettes: @incollection{tellili2020fault, title = {Fault-Tolerant Control of Two-Time-Scale Systems}, author = {A Tellili and N Abdelkrim and A Challouf and A Elghoul and MN Abdelkrim}, year = {2020}, date = {2020-01-01}, booktitle = {Diagnosis, Fault Detection & Tolerant Control}, pages = {235--264}, publisher = {Springer}, keywords = {}, pubstate = {published}, tppubtype = {incollection} } |
Atitallah, Halima; Aribi, Asma; Mohamed, Aoun Diagnosis of time-delay fractional systems using observer-based methods Article de journal International Journal of Dynamical Systems and Differential Equations, 10 , p. 128, 2020. @article{Atitallah2020, title = {Diagnosis of time-delay fractional systems using observer-based methods}, author = {Halima Atitallah and Asma Aribi and Aoun Mohamed}, doi = {10.1504/IJDSDE.2020.10027758}, year = {2020}, date = {2020-01-01}, journal = {International Journal of Dynamical Systems and Differential Equations}, volume = {10}, pages = {128}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Mizouri, W; Najar, S; Bouabdallah, L; Aoun, M Dynamic Modeling of a Quadrotor UAV Prototype Book Chapter Ghommam, Jawhar; Derbel, Nabil; Zhu, Quanmin (Ed.): New Trends in Robot Control, p. 281–299, Springer Singapore, Singapore, 2020, ISBN: 978-981-15-1819-5. Résumé | Liens | BibTeX | Étiquettes: @inbook{Mizouri2020, title = {Dynamic Modeling of a Quadrotor UAV Prototype}, author = {W Mizouri and S Najar and L Bouabdallah and M Aoun}, editor = {Jawhar Ghommam and Nabil Derbel and Quanmin Zhu}, url = {https://doi.org/10.1007/978-981-15-1819-5_14}, doi = {10.1007/978-981-15-1819-5_14}, isbn = {978-981-15-1819-5}, year = {2020}, date = {2020-01-01}, booktitle = {New Trends in Robot Control}, pages = {281--299}, publisher = {Springer Singapore}, address = {Singapore}, abstract = {Quadrotor UAV is a highly coupled and under-actuated system. Estimation of the dynamic model is an important step for the quadrotor control design. In this chapter, two modelling methods are proposed to determine the dynamic model of a quadrotor prototype. Firstly a mathematical model is developed to describe the quadrotor 6 degrees of freedom using Euler--Lagrange formalism. The unknown model parameters are then obtained using calculations and experimental tests. In the second method the roll system is estimated using closed loop identification method and frequency domain analysis. The simulation results are compared with practical responses. Both of the two methods shows good performances.}, keywords = {}, pubstate = {published}, tppubtype = {inbook} } Quadrotor UAV is a highly coupled and under-actuated system. Estimation of the dynamic model is an important step for the quadrotor control design. In this chapter, two modelling methods are proposed to determine the dynamic model of a quadrotor prototype. Firstly a mathematical model is developed to describe the quadrotor 6 degrees of freedom using Euler--Lagrange formalism. The unknown model parameters are then obtained using calculations and experimental tests. In the second method the roll system is estimated using closed loop identification method and frequency domain analysis. The simulation results are compared with practical responses. Both of the two methods shows good performances. |
Chekir, Nihel; Salem, Yassine Ben What is the relationship between the coronavirus crisis and air pollution in Tunisia? Article de journal Euro-Mediterranean Journal for Environmental Integration, 6 , 2020. @article{Nihel, title = {What is the relationship between the coronavirus crisis and air pollution in Tunisia?}, author = {Nihel Chekir and Yassine Ben Salem}, doi = {10.1007/s41207-020-00189-5}, year = {2020}, date = {2020-01-01}, journal = {Euro-Mediterranean Journal for Environmental Integration}, volume = {6}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Marwa, Bettaher; Elhsoumi, A; Naoui, Saloua Bel Hadj Ali Neutral Time-Delay System: Diagnosis and Prognosis Using UIO Observer Book Chapter p. 97-109, 2020, ISBN: 978-981-15-1745-7. @inbook{inbook, title = {Neutral Time-Delay System: Diagnosis and Prognosis Using UIO Observer}, author = {Bettaher Marwa and A Elhsoumi and Saloua Bel Hadj Ali Naoui}, doi = {10.1007/978-981-15-1746-4_5}, isbn = {978-981-15-1745-7}, year = {2020}, date = {2020-01-01}, pages = {97-109}, keywords = {}, pubstate = {published}, tppubtype = {inbook} } |
Boucetta, Rahma; Salim, Hamdi; Naoui, Saloua Bel Hadj Ali Flexible-Link Manipulators: Dynamic Analysis and Advanced Control Strategies Book Chapter p. 19-46, 2020, ISBN: 978-981-15-1818-8. @inbook{inbookRahma2020, title = {Flexible-Link Manipulators: Dynamic Analysis and Advanced Control Strategies}, author = {Rahma Boucetta and Hamdi Salim and Saloua Bel Hadj Ali Naoui}, doi = {10.1007/978-981-15-1819-5_2}, isbn = {978-981-15-1818-8}, year = {2020}, date = {2020-01-01}, pages = {19-46}, keywords = {}, pubstate = {published}, tppubtype = {inbook} } |
2019 |
CHBIR, Karim Sur les Systèmes Cyber-Physiques : Modélisation, Filtrage et Commande Tolérante aux Défauts Divers 2019, (HDR, HU). Liens | BibTeX | Étiquettes: HU @misc{KarimChabirHDR2019, title = {Sur les Systèmes Cyber-Physiques : Modélisation, Filtrage et Commande Tolérante aux Défauts}, author = {Karim CHBIR}, url = {https://macs.tn/macs/wp-content/uploads/2020/04/HDR-Karim-Chabir-Nancy-2019.pdf}, year = {2019}, date = {2019-12-20}, address = {ENIG}, school = {université de Lorraine}, note = {HDR, HU}, keywords = {HU}, pubstate = {published}, tppubtype = {misc} } |
Bougatef, Zina; Aitouche, Abdelouhab; Abdelkrim, Mohamed Naceur Fault Tolerant Control of Two‐Time Scale Delayed Systems with Respect to Additive Faults Inproceedings 15th European Workshop on Advanced Control and Diagnosis, ACD'19, Bologna, Italy, 2019. BibTeX | Étiquettes: @inproceedings{ZinaBougatefb, title = {Fault Tolerant Control of Two‐Time Scale Delayed Systems with Respect to Additive Faults}, author = {Zina Bougatef and Abdelouhab Aitouche and Mohamed Naceur Abdelkrim}, year = {2019}, date = {2019-11-01}, booktitle = {15th European Workshop on Advanced Control and Diagnosis, ACD'19}, address = {Bologna, Italy}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Bougatef, Zina; Aitouche, Abdelouhab; Abdelkrim, Mohamed Naceur Fault Tolerant Control of Two‐Time Scale Delayed Systems with Respect to Additive Faults Inproceedings 15th European Workshop on Advanced Control and Diagnosis, ACD'19, Bologna, Italy, 2019. BibTeX | Étiquettes: @inproceedings{ZinaBougatefc, title = {Fault Tolerant Control of Two‐Time Scale Delayed Systems with Respect to Additive Faults}, author = {Zina Bougatef and Abdelouhab Aitouche and Mohamed Naceur Abdelkrim}, year = {2019}, date = {2019-11-01}, booktitle = {15th European Workshop on Advanced Control and Diagnosis, ACD'19}, address = {Bologna, Italy}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
ACHNIB, Asma Développement de la commande CRONE avec effet anticipatif robuste Thèse de doctorat ENIG et Université de Bordeaux, 2019, (Thèse en cotutelle). Résumé | Liens | BibTeX | Étiquettes: Thèse @phdthesis{AchnibAsma2019these, title = {Développement de la commande CRONE avec effet anticipatif robuste}, author = {Asma ACHNIB}, url = {https://macs.tn/macs/wp-content/uploads/2019/05/Rapport-Thèse-Asma-21-05-2019-001.pdf https://macs.tn/macs/wp-content/uploads/2019/05/Rapport-Thèse-Asma-21-05-2019-Tunis-202.pdf https://macs.tn/macs/wp-content/uploads/2019/05/presentation_Asma.png}, year = {2019}, date = {2019-04-25}, address = {ENIG}, school = {ENIG et Université de Bordeaux}, abstract = {Le travail présenté dans cette thèse s’inscrit dans le cadre de l’étude de l’efficacité de la commande CRONE avec effet anticipatif robuste dans les problèmes de poursuite et de régulation pour les systèmes monovariables et multivariables. L’objectif de l’anticipation est de concevoir des algorithmes de commande capables de minimiser un critère quadratique basé sur l’erreur entre la sortie du système et le signal de référence avec modération du niveau du signal de commande. La solution proposée repose sur l’association d’une commande robuste de type feedback `a une commande anticipative de type feedforward. L’action feedforward utilise un filtre anticipatif synthétisé dans le domaine fréquentiel en utilisant des critères d’optimalité et de contraintes de type H2 et H∞. La réduction du nombre de paramètres du filtre anticipatif en utilisant une période d’échantillonnage plus lente a été traitée. Des exemples académiques illustrent les développements théoriques. Une application pratique sur un système de régulation hydraulique a montré la pertinence de cette nouvelle approche. Mots clés : Commande anticipative, systèmes `a temps discret, commande robuste, filtre anticipatif, H2, H∞. Abstract The work presented in this thesis is part of the study of the effectiveness of CRONE control with anticipative effect in the problems of tracking and control for monovariable and multivariable systems. The anticipation objective is to design a control algorithm that minimizes a quadratic error between the reference and the output of the system and at the same time achieve a good level of the control signal. The proposed solution combines a robust feedback control with a feedforward control. The feedforward action uses optimality criteria and an anticipative filter which is designed in the frequency domain using a mix of H2 et H∞ constraints. The reduction of the number of parameters of the anticipative filter by using a slower sampling period for the anticipative filter is treated. Academic examples highlight the theoretical developments. A practical application on a hydraulic control system has shown the efficiency of the developed approach. Keywords : preview control, discrete-time systems, robust control, feedforward filter, H2, H∞.}, note = {Thèse en cotutelle}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } Le travail présenté dans cette thèse s’inscrit dans le cadre de l’étude de l’efficacité de la commande CRONE avec effet anticipatif robuste dans les problèmes de poursuite et de régulation pour les systèmes monovariables et multivariables. L’objectif de l’anticipation est de concevoir des algorithmes de commande capables de minimiser un critère quadratique basé sur l’erreur entre la sortie du système et le signal de référence avec modération du niveau du signal de commande. La solution proposée repose sur l’association d’une commande robuste de type feedback `a une commande anticipative de type feedforward. L’action feedforward utilise un filtre anticipatif synthétisé dans le domaine fréquentiel en utilisant des critères d’optimalité et de contraintes de type H2 et H∞. La réduction du nombre de paramètres du filtre anticipatif en utilisant une période d’échantillonnage plus lente a été traitée. Des exemples académiques illustrent les développements théoriques. Une application pratique sur un système de régulation hydraulique a montré la pertinence de cette nouvelle approche. Mots clés : Commande anticipative, systèmes `a temps discret, commande robuste, filtre anticipatif, H2, H∞. Abstract The work presented in this thesis is part of the study of the effectiveness of CRONE control with anticipative effect in the problems of tracking and control for monovariable and multivariable systems. The anticipation objective is to design a control algorithm that minimizes a quadratic error between the reference and the output of the system and at the same time achieve a good level of the control signal. The proposed solution combines a robust feedback control with a feedforward control. The feedforward action uses optimality criteria and an anticipative filter which is designed in the frequency domain using a mix of H2 et H∞ constraints. The reduction of the number of parameters of the anticipative filter by using a slower sampling period for the anticipative filter is treated. Academic examples highlight the theoretical developments. A practical application on a hydraulic control system has shown the efficiency of the developed approach. Keywords : preview control, discrete-time systems, robust control, feedforward filter, H2, H∞. |
Bougatef, Zina SUPERVISION SUR LES SYSTEMES A RETARD : DIAGNOSTIC ET COMMANDE TOLERANTE AUX ́DEFAUTS Thèse de doctorat ENIG, 2019. Résumé | Liens | BibTeX | Étiquettes: Thèse @phdthesis{ZinaBougatef2019, title = {SUPERVISION SUR LES SYSTEMES A RETARD : DIAGNOSTIC ET COMMANDE TOLERANTE AUX ́DEFAUTS}, author = {Zina Bougatef}, url = {https://macs.tn/macs/wp-content/uploads/2019/05/thèse-zina-bougatef-001.pdf https://macs.tn/macs/wp-content/uploads/2019/05/thèse-zina-bougatef-resume.pdf}, year = {2019}, date = {2019-04-25}, address = {ENIG}, school = {ENIG}, abstract = {This work focuses on model-based fault diagnosis as well as fault-tolerant control of time-delayed Singularly Perturbed Systems (SPS) and Linear Parameter-Varying (LPV) with delay. Stability analysis is performed based on the Lyapunov-Krasovskii theory. Observers are dedicated either to state estimation or to fault detection. Two methods of diagnosis are applied for fault detection and isolation. For LPV systems, the developed approaches have been applied to two examples of real processes ; a truck trailer and a Polymer Electrolyte Membrane Fuel Cell (PEMFC). Then, two types of Fault Tolerant Control (FTC) are used to maintain the stability of delayed SPS even in the presence of faults such as trajectory tracking (PI control) and output-feedback control. Simulation examples illustrate these contributions. Keywords : Diagnosis ; Fault Tolerant Control ; Delayed SPS ; LPV delayed systems.}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } This work focuses on model-based fault diagnosis as well as fault-tolerant control of time-delayed Singularly Perturbed Systems (SPS) and Linear Parameter-Varying (LPV) with delay. Stability analysis is performed based on the Lyapunov-Krasovskii theory. Observers are dedicated either to state estimation or to fault detection. Two methods of diagnosis are applied for fault detection and isolation. For LPV systems, the developed approaches have been applied to two examples of real processes ; a truck trailer and a Polymer Electrolyte Membrane Fuel Cell (PEMFC). Then, two types of Fault Tolerant Control (FTC) are used to maintain the stability of delayed SPS even in the presence of faults such as trajectory tracking (PI control) and output-feedback control. Simulation examples illustrate these contributions. Keywords : Diagnosis ; Fault Tolerant Control ; Delayed SPS ; LPV delayed systems. |
Atitallah, H; Aribi, A; Aoun, M Fault estimation using adaptive observer-based technique for time delay fractional-order systems Inproceedings 2019 International Conference on Advanced Systems and Emergent Technologies (IC_ASET), p. 399-405, 2019. Résumé | Liens | BibTeX | Étiquettes: @inproceedings{8871006b, title = {Fault estimation using adaptive observer-based technique for time delay fractional-order systems}, author = {H Atitallah and A Aribi and M Aoun}, doi = {10.1109/ASET.2019.8871006}, year = {2019}, date = {2019-03-01}, booktitle = {2019 International Conference on Advanced Systems and Emergent Technologies (IC_ASET)}, pages = {399-405}, abstract = {This paper proposes a technique to detect and estimate faults for fractional-order systems with time delay. Two observers are used in this method. Indeed, a time-delay fractional Luenberger observer is generated to detect fault. An adaptive fractional order with time delay observer is then constructed to estimate the fault by providing an on-line estimation algorithm. The convergence criteria of this observer is expressed via linear matrix inequalities (LMIs) by the use of a specific Lyapunov function considering the continuous frequency disturbed model. The validity of the fault detection and estimation technique is shown by a numerical example.}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } This paper proposes a technique to detect and estimate faults for fractional-order systems with time delay. Two observers are used in this method. Indeed, a time-delay fractional Luenberger observer is generated to detect fault. An adaptive fractional order with time delay observer is then constructed to estimate the fault by providing an on-line estimation algorithm. The convergence criteria of this observer is expressed via linear matrix inequalities (LMIs) by the use of a specific Lyapunov function considering the continuous frequency disturbed model. The validity of the fault detection and estimation technique is shown by a numerical example. |
Ethabet, H; Raïssi, T; Amairi, M; Aoun, M Set-Membership Fault Detection for Continuous-time Switched Linear Systems Inproceedings 2019 International Conference on Advanced Systems and Emergent Technologies (IC_ASET), p. 406-411, 2019. Résumé | Liens | BibTeX | Étiquettes: @inproceedings{8870992, title = {Set-Membership Fault Detection for Continuous-time Switched Linear Systems}, author = {H Ethabet and T Raïssi and M Amairi and M Aoun}, doi = {10.1109/ASET.2019.8870992}, year = {2019}, date = {2019-03-01}, booktitle = {2019 International Conference on Advanced Systems and Emergent Technologies (IC_ASET)}, pages = {406-411}, abstract = {The problem of Fault Detection (FD) for continuous-time switched linear systems subject to bounded disturbances is investigated in this paper. Based on cooperativity and stability properties, and fulfillment of an Average Dwell Time (ADT) constraint, guaranteed upper and lower bounds of the state are calculated using an interval observer. Under the assumption that disturbances and measurement noise are unknown but bounded with a priori known bounds, stability criteria is expressed in terms of Linear Matrix Inequalities (LMIs). Then, a fault detection methodology is developed to indicate the presence of faults. Finally, we demonstrate the proposed fault detection approach via an illustrative example.}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } The problem of Fault Detection (FD) for continuous-time switched linear systems subject to bounded disturbances is investigated in this paper. Based on cooperativity and stability properties, and fulfillment of an Average Dwell Time (ADT) constraint, guaranteed upper and lower bounds of the state are calculated using an interval observer. Under the assumption that disturbances and measurement noise are unknown but bounded with a priori known bounds, stability criteria is expressed in terms of Linear Matrix Inequalities (LMIs). Then, a fault detection methodology is developed to indicate the presence of faults. Finally, we demonstrate the proposed fault detection approach via an illustrative example. |
Ethabet, Haifa Synthèse dóbservateurs intervalles pour les systèmes linéaires à commutations : application au diagnostic Thèse de doctorat ENIG, 2019. Résumé | Liens | BibTeX | Étiquettes: Thèse @phdthesis{EthabetThese2019, title = {Synthèse dóbservateurs intervalles pour les systèmes linéaires à commutations : application au diagnostic}, author = {Haifa Ethabet}, url = {https://macs.tn/macs/wp-content/uploads/2019/02/Thèse-Haifa-ETHABET.pdf https://macs.tn/macs/wp-content/uploads/2019/02/These_Thabet-Presentation.png}, year = {2019}, date = {2019-02-02}, school = {ENIG}, abstract = {The research work presented in this thesis deals with the diagnosis of switched systems by set-membership approaches. A state of the art for the diagnosis and observation techniques as well as the design methods of interval observers is presented. Thus, the report of this thesis is split into two parts. Firstly, interval observers for switched linear systems are developed. These observers provide a guaranteed set that contains all the admissible values of the state. The disturbances and the measurement noise are supposed to be unknown, but bounded with a priori known bounds. Secondly, approaches of diagnosis are proposed based on interval residual generation using interval observers. These contributions are validated through numerical simulations. Keywords : Diagnosis, interval observers, switched systems, positivity, stability.}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } The research work presented in this thesis deals with the diagnosis of switched systems by set-membership approaches. A state of the art for the diagnosis and observation techniques as well as the design methods of interval observers is presented. Thus, the report of this thesis is split into two parts. Firstly, interval observers for switched linear systems are developed. These observers provide a guaranteed set that contains all the admissible values of the state. The disturbances and the measurement noise are supposed to be unknown, but bounded with a priori known bounds. Secondly, approaches of diagnosis are proposed based on interval residual generation using interval observers. These contributions are validated through numerical simulations. Keywords : Diagnosis, interval observers, switched systems, positivity, stability. |
Mizouri, Walid Contribution à la conception, la modélisation et la commande d’un quadricoptère Thèse de doctorat ENIG, 2019. Résumé | Liens | BibTeX | Étiquettes: Thèse @phdthesis{Mizouri2019, title = {Contribution à la conception, la modélisation et la commande d’un quadricoptère}, author = {Walid Mizouri}, url = {https://macs.tn/macs/wp-content/uploads/2019/02/presentation-Walid-Mizouri.png}, year = {2019}, date = {2019-02-02}, address = {ENIG}, school = {ENIG}, abstract = {This work deals with the design, modeling and control of quadrotor UAV. Firstly a definition, applications and a classification of Unmanned Areal Vehicle UAV are given. The motion of the quadrotor UAV is also detailed. Then the developed quadrotor test prototype is described. The dynamic model of the prototype is derived using three different approaches. The first method is based on mathematical developing. The open loop modeling approach is then applied. An other method based on the frequency identification method is proposed. Secondly the control system is designed based on PID controller, IMC control strategy and Fractional PID approach to stabilize the quadrotor system. The PID controller is applied to the real prototype and validated with an experimental flight test. Keywords Quadrotor, dynamic modeling, Frequency identification, Fractional PID controller, InternalModel Control IMC.}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } This work deals with the design, modeling and control of quadrotor UAV. Firstly a definition, applications and a classification of Unmanned Areal Vehicle UAV are given. The motion of the quadrotor UAV is also detailed. Then the developed quadrotor test prototype is described. The dynamic model of the prototype is derived using three different approaches. The first method is based on mathematical developing. The open loop modeling approach is then applied. An other method based on the frequency identification method is proposed. Secondly the control system is designed based on PID controller, IMC control strategy and Fractional PID approach to stabilize the quadrotor system. The PID controller is applied to the real prototype and validated with an experimental flight test. Keywords Quadrotor, dynamic modeling, Frequency identification, Fractional PID controller, InternalModel Control IMC. |
Hamdi, Saif Eddine CONTRIBUTIONS A L’IDENTIFICATION DES SYSTÈMES PAR MODÈLE NON ENTIER DANS UN CONTEXTE A ERREURS BORNÉES PAR UNE APPROCHE ORTHOTOPIQUE Thèse de doctorat ENIG, 2019. Résumé | Liens | BibTeX | Étiquettes: Thèse @phdthesis{Hamdi2019, title = {CONTRIBUTIONS A L’IDENTIFICATION DES SYSTÈMES PAR MODÈLE NON ENTIER DANS UN CONTEXTE A ERREURS BORNÉES PAR UNE APPROCHE ORTHOTOPIQUE}, author = {Saif Eddine Hamdi}, url = {https://macs.tn/macs/wp-content/uploads/2019/02/Presentation-saifeddineHamdi.pnghttps://macs.tn/macs/wp-content/uploads/2019/02/Thèse-saifEddineHamdi.png}, year = {2019}, date = {2019-02-02}, address = {ENIG}, school = {ENIG}, abstract = {This work deals with the set-membership identification of fractional order systems in a bounded error context. The main contributions of this work are based on the orthotopic approach. In the first part, the main definitions and properties of fractional derivation and integration operators have been recalled. The classical identification methods of fractional linear time-invariant systems in a statistical context, as well as its limitations, have been presented. In the second part, the identification in bounded errors context using the orthotopic approach has been developed. Several methods and optimizations have been developed such as the orthotopic filter, the linear programming and the recirculation of the data in several directions. In the third part, the orthotopic approach for the identification of fractional systems has been developed and adapted to linear parameter-varying system in a bounded error context. Several numerical examples have been used to validate proposed methods. Keywords Fractional differentiation, LTI system, LPV system, bounded error, identification, orthotopic methods.}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } This work deals with the set-membership identification of fractional order systems in a bounded error context. The main contributions of this work are based on the orthotopic approach. In the first part, the main definitions and properties of fractional derivation and integration operators have been recalled. The classical identification methods of fractional linear time-invariant systems in a statistical context, as well as its limitations, have been presented. In the second part, the identification in bounded errors context using the orthotopic approach has been developed. Several methods and optimizations have been developed such as the orthotopic filter, the linear programming and the recirculation of the data in several directions. In the third part, the orthotopic approach for the identification of fractional systems has been developed and adapted to linear parameter-varying system in a bounded error context. Several numerical examples have been used to validate proposed methods. Keywords Fractional differentiation, LTI system, LPV system, bounded error, identification, orthotopic methods. |
Ettouil, Radhia; Chabir, Karim; Sauter, Dominique; Abdelkrim, Mohamed Naceur Integral synergetic FTC for HVAC system Inproceedings 15th European Workshop on Advanced Control and Diagnosis, ACD'19, Bologna, Italy, 2019. @inproceedings{ettouil:hal-02397213b, title = {Integral synergetic FTC for HVAC system}, author = {Radhia Ettouil and Karim Chabir and Dominique Sauter and Mohamed Naceur Abdelkrim}, url = {https://hal.archives-ouvertes.fr/hal-02397213}, year = {2019}, date = {2019-01-01}, booktitle = {15th European Workshop on Advanced Control and Diagnosis, ACD'19}, address = {Bologna, Italy}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Yakoub, Zaineb; Amairi, Messaoud; Aoun, Mohamed; Chetoui, Manel On the fractional closed-loop linear parameter varying system identification under noise corrupted scheduling and output signal measurements Article de journal Transactions of the Institute of Measurement and Control, 41 (10), p. 2909–2921, 2019. @article{yakoub2019fractional, title = {On the fractional closed-loop linear parameter varying system identification under noise corrupted scheduling and output signal measurements}, author = {Zaineb Yakoub and Messaoud Amairi and Mohamed Aoun and Manel Chetoui}, year = {2019}, date = {2019-01-01}, journal = {Transactions of the Institute of Measurement and Control}, volume = {41}, number = {10}, pages = {2909--2921}, publisher = {SAGE Publications Sage UK: London, England}, keywords = {scopus}, pubstate = {published}, tppubtype = {article} } |
Frej, Ghazi Bel Haj; Malti, Rachid; Aoun, Mohamed; Raïssi, Tarek Fractional Interval Observers And Initialization Of Fractional Systems Article de journal Communications in Nonlinear Science and Numerical Simulation, p. 105030, 2019, ISSN: 1007-5704. Résumé | Liens | BibTeX | Étiquettes: Fractional systems, Initialization, Interval observers, scopus, Stability of fractional linear systems @article{FREJ2019, title = {Fractional Interval Observers And Initialization Of Fractional Systems}, author = {Ghazi Bel Haj Frej and Rachid Malti and Mohamed Aoun and Tarek Raïssi}, url = {http://www.sciencedirect.com/science/article/pii/S1007570419303491}, doi = {https://doi.org/10.1016/j.cnsns.2019.105030}, issn = {1007-5704}, year = {2019}, date = {2019-01-01}, journal = {Communications in Nonlinear Science and Numerical Simulation}, pages = {105030}, abstract = {In this paper an interval observer is synthesized for fractional linear systems with additive noise and disturbances. The contribution of system whole past to future output is taken into account as an initialization function. Provided the initialization function is upper and lower bounded, it is shown in this paper that the fractional interval observer (FIO) allows to bound pseudo-state free responses by an upper and a lower trajectory. In case interval observers cannot be synthesized straightforwardly, so as to obtain a stable and non-negative estimation error, it is shown that a change of coordinates allows to overcome this problem. The proposed methodology allows to bound fractional systems trajectories when the whole past is unknown but can be bounded. Finally, a numerical example is given to show the effectiveness of the proposed methods on the initialization of fractional linear systems.}, keywords = {Fractional systems, Initialization, Interval observers, scopus, Stability of fractional linear systems}, pubstate = {published}, tppubtype = {article} } In this paper an interval observer is synthesized for fractional linear systems with additive noise and disturbances. The contribution of system whole past to future output is taken into account as an initialization function. Provided the initialization function is upper and lower bounded, it is shown in this paper that the fractional interval observer (FIO) allows to bound pseudo-state free responses by an upper and a lower trajectory. In case interval observers cannot be synthesized straightforwardly, so as to obtain a stable and non-negative estimation error, it is shown that a change of coordinates allows to overcome this problem. The proposed methodology allows to bound fractional systems trajectories when the whole past is unknown but can be bounded. Finally, a numerical example is given to show the effectiveness of the proposed methods on the initialization of fractional linear systems. |
Sdiri, Fatma Etudes sur les méthodes de détection et de commande tolérante aux défauts pour les machines synchrones à aimants permanents Thèse de doctorat 2019. @phdthesis{Fatma2019, title = {Etudes sur les méthodes de détection et de commande tolérante aux défauts pour les machines synchrones à aimants permanents}, author = {Fatma Sdiri}, year = {2019}, date = {2019-01-01}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } |
Houda, NAJEH Diagnostic du système bâtiment: Nouveaux défis Thèse de doctorat 2019. @phdthesis{Houda2019, title = {Diagnostic du système bâtiment: Nouveaux défis}, author = {NAJEH Houda}, year = {2019}, date = {2019-01-01}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } |
Takwa, OMRANI Investigation du crime électronique: Application de la fusion de données pour la détection díntrusions Thèse de doctorat 2019. @phdthesis{Tahkoua2019, title = {Investigation du crime électronique: Application de la fusion de données pour la détection díntrusions}, author = {OMRANI Takwa}, year = {2019}, date = {2019-01-01}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } |
Radwen, BAHRI Contribution à la navigation et la perception des robots mobiles Thèse de doctorat 2019. @phdthesis{Radwen2019, title = {Contribution à la navigation et la perception des robots mobiles}, author = {BAHRI Radwen}, year = {2019}, date = {2019-01-01}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } |
Halima, ATITALLAH Diagnostic et commande tolérantes aux défauts des systèmes dórdre non entier à retard Thèse de doctorat 2019. @phdthesis{Halima2019, title = {Diagnostic et commande tolérantes aux défauts des systèmes dórdre non entier à retard}, author = {ATITALLAH Halima}, year = {2019}, date = {2019-01-01}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } |
Aymen, ELGHOUL Sur la commande tolérante aux défauts de systèmes non linéaire: Application aux systèmes robotisés Thèse de doctorat 2019. @phdthesis{Aymen2019, title = {Sur la commande tolérante aux défauts de systèmes non linéaire: Application aux systèmes robotisés}, author = {ELGHOUL Aymen}, year = {2019}, date = {2019-01-01}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } |
Wiem, BENABDALLAH Modélisation et commande d'une prothèse active Thèse de doctorat 2019. @phdthesis{Wiem2019, title = {Modélisation et commande d'une prothèse active}, author = {BENABDALLAH Wiem}, year = {2019}, date = {2019-01-01}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } |
Atitallah, Halima; Aribi, Asma; Mohamed, Aoun Tracking Control Design for Fractional Systems with Time Delay Inproceedings p. 280-285, 2019. @inproceedings{Atitallah201903, title = {Tracking Control Design for Fractional Systems with Time Delay}, author = {Halima Atitallah and Asma Aribi and Aoun Mohamed}, doi = {10.1109/STA.2019.8717225}, year = {2019}, date = {2019-01-01}, pages = {280-285}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Chairet, R; Salem, Ben Y; Aoun, M Features extraction and land cover classification using Sentinel 2 data Inproceedings 2019 19th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA), p. 497-500, 2019. @inproceedings{8717307, title = {Features extraction and land cover classification using Sentinel 2 data}, author = {R Chairet and Ben Y Salem and M Aoun}, doi = {10.1109/STA.2019.8717307}, year = {2019}, date = {2019-01-01}, booktitle = {2019 19th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)}, pages = {497-500}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Chetoui, M; Aoun, M Instrumental variables based methods for linear systems identification with fractional models in the EIV context Inproceedings 2019 16th International Multi-Conference on Systems, Signals Devices (SSD), p. 90-95, 2019. @inproceedings{8893265, title = {Instrumental variables based methods for linear systems identification with fractional models in the EIV context}, author = {M Chetoui and M Aoun}, doi = {10.1109/SSD.2019.8893265}, year = {2019}, date = {2019-01-01}, booktitle = {2019 16th International Multi-Conference on Systems, Signals Devices (SSD)}, pages = {90-95}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Benjemaa, R; Elhsoumi, A; Naoui, Saloua Bel Hadj Ali Stability and Active Fault-Tolerant Control design for a class of neutral time-delay systems Inproceedings p. 24-29, 2019. @inproceedings{inproceedingsb, title = {Stability and Active Fault-Tolerant Control design for a class of neutral time-delay systems}, author = {R Benjemaa and A Elhsoumi and Saloua Bel Hadj Ali Naoui}, doi = {10.1109/SCC47175.2019.9116165}, year = {2019}, date = {2019-01-01}, pages = {24-29}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Hadj, Bel; Naoui, Saloua Bel Hadj Ali; Salim, Hamdi; Hadj, S Dynamic Modelling of a Flexible Single-link Manipulator using Hamilton's Principle Inproceedings 2019. BibTeX | Étiquettes: @inproceedings{inproceedingsc, title = {Dynamic Modelling of a Flexible Single-link Manipulator using Hamilton's Principle}, author = {Bel Hadj and Saloua Bel Hadj Ali Naoui and Hamdi Salim and S Hadj}, year = {2019}, date = {2019-01-01}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Salim, Hamdi; Boucetta, Rahma; Naoui, Saloua Bel Hadj Ali Dynamic Modeling of a Rigid-Flexible Manipulator using Hamilton’s Principle Inproceedings 2019. BibTeX | Étiquettes: @inproceedings{inproceedingsSalim2019, title = {Dynamic Modeling of a Rigid-Flexible Manipulator using Hamilton’s Principle}, author = {Hamdi Salim and Rahma Boucetta and Saloua Bel Hadj Ali Naoui}, year = {2019}, date = {2019-01-01}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Abdallah, Wiem; Boucetta, Rahma; Naoui, Saloua Bel Hadj Ali An adaptive Fuzzy-PID control of a lower limb active prosthesis under external perturbations Inproceedings p. 96-101, 2019. @inproceedings{inproceedingsWiem2019, title = {An adaptive Fuzzy-PID control of a lower limb active prosthesis under external perturbations}, author = {Wiem Abdallah and Rahma Boucetta and Saloua Bel Hadj Ali Naoui}, doi = {10.1109/SSD.2019.8893227}, year = {2019}, date = {2019-01-01}, pages = {96-101}, keywords = {}, pubstate = {published}, tppubtype = {inproceedings} } |
Hadil, Soltani; Harabi, Rafika; Naoui, Saloua Bel Hadj Ali; Aitouche, Abdel; Naceur, Abdelkrim Mohamed Delay dependent stability analysis of Takagi-Sugeno fuzzy time-delays system Article de journal International Journal of Digital Signals and Smart Systems, 3 , p. 150, 2019. @article{articleHadil2019, title = {Delay dependent stability analysis of Takagi-Sugeno fuzzy time-delays system}, author = {Soltani Hadil and Rafika Harabi and Saloua Bel Hadj Ali Naoui and Abdel Aitouche and Abdelkrim Mohamed Naceur}, doi = {10.1504/IJDSSS.2019.103383}, year = {2019}, date = {2019-01-01}, journal = {International Journal of Digital Signals and Smart Systems}, volume = {3}, pages = {150}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Baccouch, Chokri; Bahhar, Chayma; Sakli, Hedi; Sakli, Nizar; Aguili, Taoufik Design of a Compact Meshed Antennas for 5G Communication Systems Article de journal International Journal of Electrical, Electronic and Communication Sciences, 12.0 (11), 2019. @article{chokri_baccouch_2019_3593138, title = {Design of a Compact Meshed Antennas for 5G Communication Systems}, author = {Chokri Baccouch and Chayma Bahhar and Hedi Sakli and Nizar Sakli and Taoufik Aguili}, url = {https://doi.org/10.5281/zenodo.3593138}, doi = {10.5281/zenodo.3593138}, year = {2019}, date = {2019-01-01}, journal = {International Journal of Electrical, Electronic and Communication Sciences}, volume = {12.0}, number = {11}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
Ettouil, Radhia; Chabir, K; Sauter, Dominique; Naceur, Abdelkrim Mohamed Synergetic Control for HVAC System Control and VAV Box Fault Compensation Article de journal International Journal of Applied Mathematics and Computer Science, 29 , p. 555-570, 2019. @article{Ettouil2019, title = {Synergetic Control for HVAC System Control and VAV Box Fault Compensation}, author = {Radhia Ettouil and K Chabir and Dominique Sauter and Abdelkrim Mohamed Naceur}, doi = {10.2478/amcs-2019-0041}, year = {2019}, date = {2019-01-01}, journal = {International Journal of Applied Mathematics and Computer Science}, volume = {29}, pages = {555-570}, keywords = {}, pubstate = {published}, tppubtype = {article} } |
2018 |
Marwa, HOUIJI Optimisation des performances de diagnostic et de commande tolérante aux défauts des systèmes stochastiques Thèse de doctorat ENIG, 2018. Résumé | Liens | BibTeX | Étiquettes: Thèse @phdthesis{HOUIJI2018, title = {Optimisation des performances de diagnostic et de commande tolérante aux défauts des systèmes stochastiques}, author = {HOUIJI Marwa}, url = {https://macs.tn/macs/wp-content/uploads/2019/01/These_MarwaHouijji.pdf https://macs.tn/macs/wp-content/uploads/2019/01/PPT-Houijji.png}, year = {2018}, date = {2018-12-29}, school = {ENIG}, abstract = {Abstract The general theme of this thesis concerns the optimization of diagnostic module performance and therefore fault-tolerant control of stochastic systems. In the first part, a robust residue generation method based on the RTSK filter for a stochastic system with a single actuator or sensor fault and the ARThSKF filter for a stochastic system with simultaneous actuator and sensor faults in the presence of unknown inputs is performed. In the second part, a new method of residual evaluation using an adaptive threshold based on the Bayes test and gray theory is developed to ensure optimal performance in terms of detection time, false alarm rate and non-detection rate . A new isolation method based on double localization is presented. Finally, the optimal diagnostic module is used to apply a corrective law based on the additive and LQG method. The proposed method guaranteed the stability of the system after accommodation and verifies the speed of performance recovery. Keywords Fault Detection and Diagnosis, Fault Tolerant Control, Stochastic System, Performance Optimization, Adaptive Threshold, Delayed Detection, false alarm.}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } Abstract The general theme of this thesis concerns the optimization of diagnostic module performance and therefore fault-tolerant control of stochastic systems. In the first part, a robust residue generation method based on the RTSK filter for a stochastic system with a single actuator or sensor fault and the ARThSKF filter for a stochastic system with simultaneous actuator and sensor faults in the presence of unknown inputs is performed. In the second part, a new method of residual evaluation using an adaptive threshold based on the Bayes test and gray theory is developed to ensure optimal performance in terms of detection time, false alarm rate and non-detection rate . A new isolation method based on double localization is presented. Finally, the optimal diagnostic module is used to apply a corrective law based on the additive and LQG method. The proposed method guaranteed the stability of the system after accommodation and verifies the speed of performance recovery. Keywords Fault Detection and Diagnosis, Fault Tolerant Control, Stochastic System, Performance Optimization, Adaptive Threshold, Delayed Detection, false alarm. |
Thouraya, SALEM Contribution à l’identification des systèmes par modèle non entier à paramètres variants Thèse de doctorat ENIG, 2018. Résumé | Liens | BibTeX | Étiquettes: Thèse @phdthesis{SALEM2018, title = {Contribution à l’identification des systèmes par modèle non entier à paramètres variants}, author = {SALEM Thouraya}, url = {https://macs.tn/macs/wp-content/uploads/2019/01/These_SalemT.pdf https://macs.tn/macs/wp-content/uploads/2019/01/ppt-Salem.png}, year = {2018}, date = {2018-12-29}, school = {ENIG}, abstract = {Résumé Les principaux travaux de recherches de cette thèse concernent l’identification des systèmes Linéaires à Paramètres Variants non entiers à temps continu. Dans un premier temps, deux classes de méthodes sont développées : une basée sur les méthodes des moindres carrés, et l’autre basée sur la méthode de variable instrumentale. Ainsi, deux cas peuvent ont été envisagés : le premier cas suppose que tous les ordres de dérivation sont connus à priori et seuls les coefficients de l’équation différentielle non entière du modèle linéaires à paramètres variants sont estimés. Le second cas suppose que tous les ordres de dérivation sont inconnus et estimés au même titre que les coefficients. Dans un deuxième temps, la variable de séquencement est supposée mesurable. Une méthode est développée, dédiée à l’estimation des paramètres ainsi que les ordres de dérivation non entières de ces modèles `a temps continu. Le principe de compensation de biais d’estimation est introduit en se basant sur la méthode de variable instrumentale. Des simulations illustrent les performances des approches proposées. Mots clés : Dérivation non entière, systèmes LPV, identification, moindres carrés, variable instrumentale, modèles continus. Abstract This research work aims at studying the identification of fractional Linear Parameter varying Systems in continuous-time. At first, two classes of methods are developed : the first one is based on the least squares methods, and the second one is based on the instrumental variable method. Thus, two cases have been considered. Firstly, all the fractional derivation orders are assumed to be a priori known and only the coefficients of the fractional differential equation of the continuous time LPV model are estimated. Secondly, both fractional differential equation coefficients and differentiation order are estimated. Then, the scheduling variable is supposed to be measurable. A method is developed, dedicated to estimate the parameters as well as the fractional derivation orders of the continuous time linear parameter varying model. The bias compensated principle is introduced based on the instrumental variable method. Simulations illustrate the performance of the proposed approaches. Keywords Fractional differentiation, LPV system, system identification, least squares, instrumental variable, continuous time.}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } Résumé Les principaux travaux de recherches de cette thèse concernent l’identification des systèmes Linéaires à Paramètres Variants non entiers à temps continu. Dans un premier temps, deux classes de méthodes sont développées : une basée sur les méthodes des moindres carrés, et l’autre basée sur la méthode de variable instrumentale. Ainsi, deux cas peuvent ont été envisagés : le premier cas suppose que tous les ordres de dérivation sont connus à priori et seuls les coefficients de l’équation différentielle non entière du modèle linéaires à paramètres variants sont estimés. Le second cas suppose que tous les ordres de dérivation sont inconnus et estimés au même titre que les coefficients. Dans un deuxième temps, la variable de séquencement est supposée mesurable. Une méthode est développée, dédiée à l’estimation des paramètres ainsi que les ordres de dérivation non entières de ces modèles `a temps continu. Le principe de compensation de biais d’estimation est introduit en se basant sur la méthode de variable instrumentale. Des simulations illustrent les performances des approches proposées. Mots clés : Dérivation non entière, systèmes LPV, identification, moindres carrés, variable instrumentale, modèles continus. Abstract This research work aims at studying the identification of fractional Linear Parameter varying Systems in continuous-time. At first, two classes of methods are developed : the first one is based on the least squares methods, and the second one is based on the instrumental variable method. Thus, two cases have been considered. Firstly, all the fractional derivation orders are assumed to be a priori known and only the coefficients of the fractional differential equation of the continuous time LPV model are estimated. Secondly, both fractional differential equation coefficients and differentiation order are estimated. Then, the scheduling variable is supposed to be measurable. A method is developed, dedicated to estimate the parameters as well as the fractional derivation orders of the continuous time linear parameter varying model. The bias compensated principle is introduced based on the instrumental variable method. Simulations illustrate the performance of the proposed approaches. Keywords Fractional differentiation, LPV system, system identification, least squares, instrumental variable, continuous time. |
Taouba, RHOUMA FILTRAGE DES SYSTEMES STOCHASTIQUES A ENTREES INCONNUES: APPLICATION A LA DETECTION ET L’ESTIMATION DES CYBER-ATTAQUES Thèse de doctorat ENIG, 2018. @phdthesis{RHOUMA2018, title = {FILTRAGE DES SYSTEMES STOCHASTIQUES A ENTREES INCONNUES: APPLICATION A LA DETECTION ET L’ESTIMATION DES CYBER-ATTAQUES}, author = {RHOUMA Taouba}, year = {2018}, date = {2018-12-19}, school = {ENIG}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } |
Slim, HAMDI ANALYSE DYNAMIQUE ET TECHNIQUES DE CONTROLE DES MANIPULATEURS FLEXIBLES Thèse de doctorat ENIG, 2018. @phdthesis{HAMDI2018, title = {ANALYSE DYNAMIQUE ET TECHNIQUES DE CONTROLE DES MANIPULATEURS FLEXIBLES}, author = {HAMDI Slim}, year = {2018}, date = {2018-12-19}, school = {ENIG}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } |
MATOUI, Fethi CONTRIBUTION A LA PLANIFICATION DE TRAJECTOIRE D’UN SYSTÈME MULTI-ROBOTS DANS UN MILIEU DYNAMIQUE Thèse de doctorat ENIG, 2018. Résumé | Liens | BibTeX | Étiquettes: Thèse @phdthesis{MATOUI2018, title = {CONTRIBUTION A LA PLANIFICATION DE TRAJECTOIRE D’UN SYSTÈME MULTI-ROBOTS DANS UN MILIEU DYNAMIQUE}, author = {Fethi MATOUI}, url = {https://macs.tn/macs/wp-content/uploads/2018/11/these_METOUI-724x1024.jpg https://macs.tn/macs/wp-content/uploads/2018/11/presentation_Matoui.png}, year = {2018}, date = {2018-12-18}, school = {ENIG}, abstract = {Résumé: Ce sujet de thèse concerne la planification de trajectoires d&39;étude de planification a été effectuée dans un environnement "sans obstacle" et "avec obstacle", en se basant sur la technique de champ de potentiel artificiel. Cette technique permet d&39;application et conduit à des trajectoires optimales. Également, pour les systèmes multi-robots mobiles, l&39;architecture de planification sont proposées: architecture décentralisée, architecture centralisée et architecture hiérarchisée. Mots clés: Robotique, Robot mobile, Planification de trajectoire, champ de potentiel artificiel, système multi-robots, Environnement dynamique. Abstract : This thesis topic concerns the planning of trajectories of a mobile multi-robot system in a dynamic environment. The planning study was conducted in a "barrier-free" and "with obstacle" environment, based on the artificial potential field technique. This technique makes it possible to obtain attractive and repulsive force profiles adapted to the needs of the application and leads to optimal trajectories. Also, for multi-robot mobile systems, one of the main technical considerations is the technique used to coordinate the movements of different robots. So, three types of planning architecture are proposed: decentralized architecture, centralized architecture and hierarchical architecture. Keywords : Robotics, Mobile robot, Path planning, Artificial potential field, Multi-robot system, Dynamic environment.}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } Résumé: Ce sujet de thèse concerne la planification de trajectoires d&39;étude de planification a été effectuée dans un environnement "sans obstacle" et "avec obstacle", en se basant sur la technique de champ de potentiel artificiel. Cette technique permet d&39;application et conduit à des trajectoires optimales. Également, pour les systèmes multi-robots mobiles, l&39;architecture de planification sont proposées: architecture décentralisée, architecture centralisée et architecture hiérarchisée. Mots clés: Robotique, Robot mobile, Planification de trajectoire, champ de potentiel artificiel, système multi-robots, Environnement dynamique. Abstract : This thesis topic concerns the planning of trajectories of a mobile multi-robot system in a dynamic environment. The planning study was conducted in a "barrier-free" and "with obstacle" environment, based on the artificial potential field technique. This technique makes it possible to obtain attractive and repulsive force profiles adapted to the needs of the application and leads to optimal trajectories. Also, for multi-robot mobile systems, one of the main technical considerations is the technique used to coordinate the movements of different robots. So, three types of planning architecture are proposed: decentralized architecture, centralized architecture and hierarchical architecture. Keywords : Robotics, Mobile robot, Path planning, Artificial potential field, Multi-robot system, Dynamic environment. |
Tellili, Adel; Abdelkrim, Nouceyba; Challouf, Amina; Abdelkrim, Mohamed-Naceur Adaptive Fault Tolerant Control of Multi-time-scale Singularly Perturbed Systems Article de journal International Journal of Automation and Computing, 15 (6), p. 736–746, 2018, ISSN: 1751-8520. Résumé | Liens | BibTeX | Étiquettes: scopus @article{Tellili2018, title = {Adaptive Fault Tolerant Control of Multi-time-scale Singularly Perturbed Systems}, author = {Adel Tellili and Nouceyba Abdelkrim and Amina Challouf and Mohamed-Naceur Abdelkrim}, editor = {Springer}, url = {https://doi.org/10.1007/s11633-016-0971-9}, doi = {10.1007/s11633-016-0971-9}, issn = {1751-8520}, year = {2018}, date = {2018-12-01}, journal = {International Journal of Automation and Computing}, volume = {15}, number = {6}, pages = {736--746}, abstract = {This paper studies the fault tolerant control, adaptive approach, for linear time-invariant two-time-scale and three-time-scale singularly perturbed systems in presence of actuator faults and external disturbances. First, the full order system will be controlled using $epsilon$-dependent control law. The corresponding Lyapunov equation is ill-conditioned due to the presence of slow and fast phenomena. Secondly, a time-scale decomposition of the Lyapunov equation is carried out using singular perturbation method to avoid the numerical stiffness. A composite control law based on local controllers of the slow and fast subsystems is also used to make the control law $epsilon$-independent. The designed fault tolerant control guarantees the robust stability of the global closed-loop singularly perturbed system despite loss of effectiveness of actuators. The stability is proved based on the Lyapunov stability theory in the case where the singular perturbation parameter is sufficiently small. A numerical example is provided to illustrate the proposed method.}, keywords = {scopus}, pubstate = {published}, tppubtype = {article} } This paper studies the fault tolerant control, adaptive approach, for linear time-invariant two-time-scale and three-time-scale singularly perturbed systems in presence of actuator faults and external disturbances. First, the full order system will be controlled using $epsilon$-dependent control law. The corresponding Lyapunov equation is ill-conditioned due to the presence of slow and fast phenomena. Secondly, a time-scale decomposition of the Lyapunov equation is carried out using singular perturbation method to avoid the numerical stiffness. A composite control law based on local controllers of the slow and fast subsystems is also used to make the control law $epsilon$-independent. The designed fault tolerant control guarantees the robust stability of the global closed-loop singularly perturbed system despite loss of effectiveness of actuators. The stability is proved based on the Lyapunov stability theory in the case where the singular perturbation parameter is sufficiently small. A numerical example is provided to illustrate the proposed method. |
AYADI, Hayfa CONTRIBUTION A L’OPTIMISATION D’ ENERGIE DANS LE RESEAU DE CAPTEURS SANS FIL : STANDARD IEEE 802.15.4 Thèse de doctorat ENIG, 2018. Résumé | BibTeX | Étiquettes: Thèse @phdthesis{AYADI2018, title = {CONTRIBUTION A L’OPTIMISATION D’ ENERGIE DANS LE RESEAU DE CAPTEURS SANS FIL : STANDARD IEEE 802.15.4}, author = {Hayfa AYADI}, year = {2018}, date = {2018-11-19}, school = {ENIG}, abstract = {Résumé Les travaux de recherche de cette thèse portent sur le problème de la consommation énergétique dans les réseaux de capteurs sans fil. Notre étude est consacrée intégralement au standard IEEE 802.15.4. Nous avons propos ́e un modèle mathématique de la consommation énergétique. Afin d’optimiser la consommation d’énergie dans ce standard, nous avons développé des algorithmes d’ajustement de duty cycle en fonction de la quantité d’énergie restante dans la batterie d’un noeud pour les deux modes de fonctionnement de la technologie étudiée (mode beacon et non beacon). Les algorithmes propos ́es pour le premier mode permettent d’agir sur les paramètres BO et SO de standard IEEE 802.15.4 afin de contrôler sur la consommation d’ énergie en fonction de l’énergie résiduelle. Pour le second mode (mode non beacon), nous avons ajusté le duty cycle `a la quantité d’énergie restante. Des essaies de simulation ont ́et ́e réalisés à travers le simulateur INETMANET/Omnet++. La validation pratique a été effectué sur la plateforme réelle TeensyWino de réseau de capteurs sans fil. Mots cl ́es : Réseau de capteurs sans fil, Standard IEEE 802.15.4, Ajustement d’énergie, CSMA/CA mode slotté, CSMA/CA mode non slotté, Duty cycle. Abstract The energy consumption in wireless sensor networks presents a serious problem. Our study is dedicated entirely to the IEEE 802.15.4 standard. We have proposed a mathematical model of energy consumption. In order to optimize energy consumption in this standard, we have developed duty cycle adjustment algorithms according to the energy level remaining in the battery of a node for both modes (beacon mode and non beacon mode). The algorithms proposed for the first mode make it possible to manipulate the parameters BO and SO of standard IEEE 802.15.4 in order to adjust the energy consumption according to the residual energy. For the second mode (non textit beacon mode), the duty cycle was managed according to the remaining energy level. INETMANET / Omnet ++ simulator is used to evaluate the performances of the proposed algorithms. Then, a practical validation was executed with the real platform of wireless sensor network of kind TeensyWino . Keywords : Wireless Sensor Network, IEEE 802.15.4 Standard, Energy Adjustment, CSMA/CA Slotted Mode, CSMA /CA Non Slotted Mode, Duty cycle.}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } Résumé Les travaux de recherche de cette thèse portent sur le problème de la consommation énergétique dans les réseaux de capteurs sans fil. Notre étude est consacrée intégralement au standard IEEE 802.15.4. Nous avons propos ́e un modèle mathématique de la consommation énergétique. Afin d’optimiser la consommation d’énergie dans ce standard, nous avons développé des algorithmes d’ajustement de duty cycle en fonction de la quantité d’énergie restante dans la batterie d’un noeud pour les deux modes de fonctionnement de la technologie étudiée (mode beacon et non beacon). Les algorithmes propos ́es pour le premier mode permettent d’agir sur les paramètres BO et SO de standard IEEE 802.15.4 afin de contrôler sur la consommation d’ énergie en fonction de l’énergie résiduelle. Pour le second mode (mode non beacon), nous avons ajusté le duty cycle `a la quantité d’énergie restante. Des essaies de simulation ont ́et ́e réalisés à travers le simulateur INETMANET/Omnet++. La validation pratique a été effectué sur la plateforme réelle TeensyWino de réseau de capteurs sans fil. Mots cl ́es : Réseau de capteurs sans fil, Standard IEEE 802.15.4, Ajustement d’énergie, CSMA/CA mode slotté, CSMA/CA mode non slotté, Duty cycle. Abstract The energy consumption in wireless sensor networks presents a serious problem. Our study is dedicated entirely to the IEEE 802.15.4 standard. We have proposed a mathematical model of energy consumption. In order to optimize energy consumption in this standard, we have developed duty cycle adjustment algorithms according to the energy level remaining in the battery of a node for both modes (beacon mode and non beacon mode). The algorithms proposed for the first mode make it possible to manipulate the parameters BO and SO of standard IEEE 802.15.4 in order to adjust the energy consumption according to the residual energy. For the second mode (non textit beacon mode), the duty cycle was managed according to the remaining energy level. INETMANET / Omnet ++ simulator is used to evaluate the performances of the proposed algorithms. Then, a practical validation was executed with the real platform of wireless sensor network of kind TeensyWino . Keywords : Wireless Sensor Network, IEEE 802.15.4 Standard, Energy Adjustment, CSMA/CA Slotted Mode, CSMA /CA Non Slotted Mode, Duty cycle. |
Manel, FITOURI Contribution à la commande de la Machine synchrone à aimants permanents par la méthode des éléments finis Thèse de doctorat ENIG, 2018. @phdthesis{FITOURI2018, title = {Contribution à la commande de la Machine synchrone à aimants permanents par la méthode des éléments finis}, author = {FITOURI Manel}, year = {2018}, date = {2018-11-17}, school = {ENIG}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } |
Radhia, ETTOUIL Sur le Diagnostic et la Commande Tolérante aux Défauts : Approche Synergétique Thèse de doctorat ENIG, 2018. @phdthesis{ETTOUIL2018, title = {Sur le Diagnostic et la Commande Tolérante aux Défauts : Approche Synergétique}, author = {ETTOUIL Radhia}, year = {2018}, date = {2018-11-17}, school = {ENIG}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } |
Noussaiba, Gasmi Observation et commande d’une classe de systèmes non linéaires à temps discret Thèse de doctorat ENIG, Université de Loraine, 2018, (Cotutelle). Résumé | Liens | BibTeX | Étiquettes: Thèse @phdthesis{Gasmi2018, title = {Observation et commande d’une classe de systèmes non linéaires à temps discret}, author = {Gasmi Noussaiba}, url = {https://macs.tn/macs/wp-content/uploads/2018/11/Soutenance_NGasmi.png}, year = {2018}, date = {2018-11-14}, urldate = {2018-11-20}, school = {ENIG, Université de Loraine}, abstract = {Résumé L’analyse et la synthèse des systèmes dynamiques ont connu un développement important au cours des dernières décennies comme l’atteste le nombre considérable des travaux publiés dans ce domaine, et continuent d’être un axe de recherche régulièrement exploré. Si la plupart des travaux concernent les systèmes linéaires et non linéaires temps continu, peu de résultats ont étaient établis dans le cas temps discret. Les travaux de cette thèse portent sur l’observation et la commande d’une classe de systèmes non linéaires à temps discret. Dans un premier temps, le problème de synthèse d’observateur d’état utilisant une fenêtre de mesures glissante a été abordé. Des conditions de stabilité et de robustesse moins restrictives ont été déduites. Ainsi, deux classes de systèmes non linéaires à temps discret ont été étudiées : Les systèmes de type Lipschitz et les systèmes « one-sided Lipschitz ». Ensuite, une approche duale a été explorée afin de déduire une loi de commande stabilisante basée sur un observateur. Les conditions d’existence d’un observateur et d’un contrôleur stabilisant les systèmes étudiés ont été formulées sous forme d’un problème d’optimisation LMI. L’efficacité et la validité des approches présentées sont montrées à travers quelques exemples académiques. Mots-clés: Systèmes à temps discret, Systèmes Lipschitz, Systèmes « one-sided Lipschitz », Optimisation LMI, Stabilité au sens de Lyapunov, Filtrage H1, Approche avec fenêtre glissante, Commande basée-observateur, Commande robuste, Critère H1, Incertitudes paramétriques. Abstract The analysis and synthesis of dynamic systems has undergone significant development in recent decades, as illustrated by the considerable number of published works in this field, and continue to be a research theme regularly explored. While most of the work concerns linear and nonlinear continuous-time systems, few results have been established in the discrete-time case. This thesis deals with the observation and control of a class of nonlinear discrete-time systems. At first, the problem of state observer synthesis using a sliding window of measurements was discussed. Non-restrictive stability and robustness conditions have been deduced. Thus, two classes of discrete time nonlinear systems have been studied : Lipschitz systems and one-side Lipschitz systems. Then, a dual approach was explored to derive a stabilizing control law based on observer-based state feedback. The conditions for the existence of an observer and a controller stabilizing the studied classes of nonlinear systems were expressed in term of LMI. The effectiveness and validity of the proposed approaches are shown through numerical examples. Keywords: Discrete-time systems, Lipschitz systems, One-sided Lipschitz systems, LMI optimization, Lyapunov Stability, H1 filtering, Sliding window approach, Observer-based control, Robust control, H1 criterion, Parametric uncertainties.}, note = {Cotutelle}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } Résumé L’analyse et la synthèse des systèmes dynamiques ont connu un développement important au cours des dernières décennies comme l’atteste le nombre considérable des travaux publiés dans ce domaine, et continuent d’être un axe de recherche régulièrement exploré. Si la plupart des travaux concernent les systèmes linéaires et non linéaires temps continu, peu de résultats ont étaient établis dans le cas temps discret. Les travaux de cette thèse portent sur l’observation et la commande d’une classe de systèmes non linéaires à temps discret. Dans un premier temps, le problème de synthèse d’observateur d’état utilisant une fenêtre de mesures glissante a été abordé. Des conditions de stabilité et de robustesse moins restrictives ont été déduites. Ainsi, deux classes de systèmes non linéaires à temps discret ont été étudiées : Les systèmes de type Lipschitz et les systèmes « one-sided Lipschitz ». Ensuite, une approche duale a été explorée afin de déduire une loi de commande stabilisante basée sur un observateur. Les conditions d’existence d’un observateur et d’un contrôleur stabilisant les systèmes étudiés ont été formulées sous forme d’un problème d’optimisation LMI. L’efficacité et la validité des approches présentées sont montrées à travers quelques exemples académiques. Mots-clés: Systèmes à temps discret, Systèmes Lipschitz, Systèmes « one-sided Lipschitz », Optimisation LMI, Stabilité au sens de Lyapunov, Filtrage H1, Approche avec fenêtre glissante, Commande basée-observateur, Commande robuste, Critère H1, Incertitudes paramétriques. Abstract The analysis and synthesis of dynamic systems has undergone significant development in recent decades, as illustrated by the considerable number of published works in this field, and continue to be a research theme regularly explored. While most of the work concerns linear and nonlinear continuous-time systems, few results have been established in the discrete-time case. This thesis deals with the observation and control of a class of nonlinear discrete-time systems. At first, the problem of state observer synthesis using a sliding window of measurements was discussed. Non-restrictive stability and robustness conditions have been deduced. Thus, two classes of discrete time nonlinear systems have been studied : Lipschitz systems and one-side Lipschitz systems. Then, a dual approach was explored to derive a stabilizing control law based on observer-based state feedback. The conditions for the existence of an observer and a controller stabilizing the studied classes of nonlinear systems were expressed in term of LMI. The effectiveness and validity of the proposed approaches are shown through numerical examples. Keywords: Discrete-time systems, Lipschitz systems, One-sided Lipschitz systems, LMI optimization, Lyapunov Stability, H1 filtering, Sliding window approach, Observer-based control, Robust control, H1 criterion, Parametric uncertainties. |
Samah, YAHIA ANALYSE, SEGMENTATION ET CLASSIFICATION DES IMAGES 3D Thèse de doctorat ENIG, 2018. @phdthesis{YAHIA2018, title = {ANALYSE, SEGMENTATION ET CLASSIFICATION DES IMAGES 3D}, author = {YAHIA Samah}, year = {2018}, date = {2018-11-10}, school = {ENIG}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } |
Lazhar, WARDI Mohamed Contribution à la Commande Non Entière des Systèmes Non Linéaires : Approche par Perturbations singulières et Approche Multimodèles Thèse de doctorat ENIG, 2018. Résumé | Liens | BibTeX | Étiquettes: Thèse @phdthesis{WARDI2018, title = {Contribution à la Commande Non Entière des Systèmes Non Linéaires : Approche par Perturbations singulières et Approche Multimodèles}, author = {WARDI Mohamed Lazhar}, url = {https://macs.tn/macs/wp-content/uploads/2018/12/MED_WARDI_-1juin_2018.pdf}, year = {2018}, date = {2018-06-30}, school = {ENIG}, abstract = {Le thème général de cette thèse concerne la synthèse d’un régulateur non entier de type PID et CRONE pour des systèmes non linéaires en utilisant l’approche des Perturbations Singulières et l’approche Multimodèles. Suite aux définitions et principales propriétés des opérateurs d’intégration et de dérivation non entières et grˆace à la méthode d’approximation d’opérateurs non entiers, on a pu appliquer la commande CRONE de première génération au cas d’un système singulièrement perturbé à deux dynamiques lente et rapide. Par la suite, des méthodes de synthèse robuste du régulateur P IαDβ ontété présentées et ce en vue de proposer une stratégie de synthèse non entière par la technique des perturbations singulières pour un système non linéaire pour assurer la poursuite d’un modèle désiré non entier. Celle-ci a pu assurer un bon rejet de perturbation. Une étude d’un processus hydraulique non linéaire nous a permis d’illustrer cette approche. Enfin, la commande CRONE de première génération est proposée pour un processus non linéaire approximé par des multimodèles d’ordre un, les résultats étaient incitants pour mettre en œuvre une nouvelle approche de commande de ce type de systèmes en utilisant cette fois les régulateurs P Iα de type non entier. Une robustesse vis à vis du comportement non linéaire est assurée Mots clés : Commande non entière, système non linéaire, robustesse, technique des perturbations singulières, approche multimodèles. Abstract This work deals with the design of a fractional PID and CRONE controller for nonlinear systems using the Singular Perturbations approach and the Multimodel approach. Definitions and main properties of the fractional operators are given. So, the approximation method allowed us to apply the first generation CRONE control in the case of a singularly perturbed system with two slow and fast dynamics. Then, design methods of robust controller P IαDβ have been studied in order to propose a fractional control strategy using the singular perturbation method for a nonlinear system. This control ensure the tracking of a desired fractional model as well as to have a good rejection of disturbance. Then, a study of a nonlinear hydraulic process has illustrate this approach. Finally, the first-generation CRONE control is proposed for a nonlinear process approximated by first-order multimodeles, the results were hopeful to implement a new control approach for this type of systems using here the non integer P Iα regulators. Keywords : Fractional order controller, nonlinear systems, robustness, singular perturbations technique, multimodel approach.}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } Le thème général de cette thèse concerne la synthèse d’un régulateur non entier de type PID et CRONE pour des systèmes non linéaires en utilisant l’approche des Perturbations Singulières et l’approche Multimodèles. Suite aux définitions et principales propriétés des opérateurs d’intégration et de dérivation non entières et grˆace à la méthode d’approximation d’opérateurs non entiers, on a pu appliquer la commande CRONE de première génération au cas d’un système singulièrement perturbé à deux dynamiques lente et rapide. Par la suite, des méthodes de synthèse robuste du régulateur P IαDβ ontété présentées et ce en vue de proposer une stratégie de synthèse non entière par la technique des perturbations singulières pour un système non linéaire pour assurer la poursuite d’un modèle désiré non entier. Celle-ci a pu assurer un bon rejet de perturbation. Une étude d’un processus hydraulique non linéaire nous a permis d’illustrer cette approche. Enfin, la commande CRONE de première génération est proposée pour un processus non linéaire approximé par des multimodèles d’ordre un, les résultats étaient incitants pour mettre en œuvre une nouvelle approche de commande de ce type de systèmes en utilisant cette fois les régulateurs P Iα de type non entier. Une robustesse vis à vis du comportement non linéaire est assurée Mots clés : Commande non entière, système non linéaire, robustesse, technique des perturbations singulières, approche multimodèles. Abstract This work deals with the design of a fractional PID and CRONE controller for nonlinear systems using the Singular Perturbations approach and the Multimodel approach. Definitions and main properties of the fractional operators are given. So, the approximation method allowed us to apply the first generation CRONE control in the case of a singularly perturbed system with two slow and fast dynamics. Then, design methods of robust controller P IαDβ have been studied in order to propose a fractional control strategy using the singular perturbation method for a nonlinear system. This control ensure the tracking of a desired fractional model as well as to have a good rejection of disturbance. Then, a study of a nonlinear hydraulic process has illustrate this approach. Finally, the first-generation CRONE control is proposed for a nonlinear process approximated by first-order multimodeles, the results were hopeful to implement a new control approach for this type of systems using here the non integer P Iα regulators. Keywords : Fractional order controller, nonlinear systems, robustness, singular perturbations technique, multimodel approach. |
SBIT, Selma Analyse des Interférences en Réseaux Mobiles 4G (LTE-Advanced) Thèse de doctorat ENIG, 2018. Résumé | Liens | BibTeX | Étiquettes: Thèse @phdthesis{SBIT2018, title = {Analyse des Interférences en Réseaux Mobiles 4G (LTE-Advanced)}, author = {Selma SBIT}, url = {https://macs.tn/macs/wp-content/uploads/2018/11/PagedeTitre_sbit-724x1024.jpg https://macs.tn/macs/wp-content/uploads/2018/11/SBIT-1024x576.jpg}, year = {2018}, date = {2018-05-26}, school = {ENIG}, abstract = {L’objectif de ce travail de thèse de doctorat est principalement l’analyse des interférences dans les réseaux mobiles de quatrième génération. Dans une première partie, on fait une analyse des interférences dans les réseaux cellulaires classiques de deuxième et de troisième génération. Une évaluation des interférences intra et intercellulaires est faite tout en considérant une topologie réseaux dont le motif cellulaire comporte sept cellules. Les simulations sont réalisées dans un milieu urbain en faisant varier le nombre des utilisateurs actifs dans la cellule servante de 10 à 30 utilisateurs. Dans une deuxième partie, on aborde le problème d’interférences en réseaux mobiles de quatrième génération. Dans ce cadre, deux techniques de réduction des interférences après analyse dans le domaine fréquentiel, temporel et celui du contrôle de puissance sont proposées. Enfin, la dernière section présentera les résultats des simulations obtenus pour diverses et différentes situations de la vie quotidienne. Mots clefs Réseaux Mobiles, LTE-Advanced, Interférence, Femto cellule, Réutilisation de fréquence, Rapport Signal sur Interférence plus Bruit. Abstract The main objective of this work is to describe the interference drawback in fourth generation mobile networks. The first section presents an interference analysis in the classic cellular networks named second and third generations is made. Simulations are carried out in urban environment while varying served users from 10 to 30 users. In a second section, we address the problem of interference in fourth generation mobile networks. In this context, two interference reduction techniques based on the frequency domain, time domain and that of power control are proposed. The last section will mainly show simulation results. The reader would be more satisfice over various experiments and essays that will consider main and various daily encountered situations. Keywords Mobiles Networks, LTE-Advanced, Interference, Femtocell, Frequency Reuse, Signal to Interference plus Noise Ratio.}, keywords = {Thèse}, pubstate = {published}, tppubtype = {phdthesis} } L’objectif de ce travail de thèse de doctorat est principalement l’analyse des interférences dans les réseaux mobiles de quatrième génération. Dans une première partie, on fait une analyse des interférences dans les réseaux cellulaires classiques de deuxième et de troisième génération. Une évaluation des interférences intra et intercellulaires est faite tout en considérant une topologie réseaux dont le motif cellulaire comporte sept cellules. Les simulations sont réalisées dans un milieu urbain en faisant varier le nombre des utilisateurs actifs dans la cellule servante de 10 à 30 utilisateurs. Dans une deuxième partie, on aborde le problème d’interférences en réseaux mobiles de quatrième génération. Dans ce cadre, deux techniques de réduction des interférences après analyse dans le domaine fréquentiel, temporel et celui du contrôle de puissance sont proposées. Enfin, la dernière section présentera les résultats des simulations obtenus pour diverses et différentes situations de la vie quotidienne. Mots clefs Réseaux Mobiles, LTE-Advanced, Interférence, Femto cellule, Réutilisation de fréquence, Rapport Signal sur Interférence plus Bruit. Abstract The main objective of this work is to describe the interference drawback in fourth generation mobile networks. The first section presents an interference analysis in the classic cellular networks named second and third generations is made. Simulations are carried out in urban environment while varying served users from 10 to 30 users. In a second section, we address the problem of interference in fourth generation mobile networks. In this context, two interference reduction techniques based on the frequency domain, time domain and that of power control are proposed. The last section will mainly show simulation results. The reader would be more satisfice over various experiments and essays that will consider main and various daily encountered situations. Keywords Mobiles Networks, LTE-Advanced, Interference, Femtocell, Frequency Reuse, Signal to Interference plus Noise Ratio. |
Publications
2020 |
Sensor Fault Detection and Estimation Based on UIO for LPV Time Delay Systems Using Descriptor Approach Book Chapter Derbel, Nabil; Ghommam, Jawhar; Zhu, Quanmin (Ed.): Diagnosis, Fault Detection & Tolerant Control, p. 55–69, Springer Singapore, Singapore, 2020, ISBN: 978-981-15-1746-4. |
Fault-Tolerant Control of Two-Time-Scale Systems incollection Diagnosis, Fault Detection & Tolerant Control, p. 235–264, Springer, 2020. |
Diagnosis of time-delay fractional systems using observer-based methods Article de journal International Journal of Dynamical Systems and Differential Equations, 10 , p. 128, 2020. |
Dynamic Modeling of a Quadrotor UAV Prototype Book Chapter Ghommam, Jawhar; Derbel, Nabil; Zhu, Quanmin (Ed.): New Trends in Robot Control, p. 281–299, Springer Singapore, Singapore, 2020, ISBN: 978-981-15-1819-5. |
What is the relationship between the coronavirus crisis and air pollution in Tunisia? Article de journal Euro-Mediterranean Journal for Environmental Integration, 6 , 2020. |
Neutral Time-Delay System: Diagnosis and Prognosis Using UIO Observer Book Chapter p. 97-109, 2020, ISBN: 978-981-15-1745-7. |
Flexible-Link Manipulators: Dynamic Analysis and Advanced Control Strategies Book Chapter p. 19-46, 2020, ISBN: 978-981-15-1818-8. |
2019 |
Sur les Systèmes Cyber-Physiques : Modélisation, Filtrage et Commande Tolérante aux Défauts Divers 2019, (HDR, HU). |
Fault Tolerant Control of Two‐Time Scale Delayed Systems with Respect to Additive Faults Inproceedings 15th European Workshop on Advanced Control and Diagnosis, ACD'19, Bologna, Italy, 2019. |
Fault Tolerant Control of Two‐Time Scale Delayed Systems with Respect to Additive Faults Inproceedings 15th European Workshop on Advanced Control and Diagnosis, ACD'19, Bologna, Italy, 2019. |
Développement de la commande CRONE avec effet anticipatif robuste Thèse de doctorat ENIG et Université de Bordeaux, 2019, (Thèse en cotutelle). |
SUPERVISION SUR LES SYSTEMES A RETARD : DIAGNOSTIC ET COMMANDE TOLERANTE AUX ́DEFAUTS Thèse de doctorat ENIG, 2019. |
Fault estimation using adaptive observer-based technique for time delay fractional-order systems Inproceedings 2019 International Conference on Advanced Systems and Emergent Technologies (IC_ASET), p. 399-405, 2019. |
Set-Membership Fault Detection for Continuous-time Switched Linear Systems Inproceedings 2019 International Conference on Advanced Systems and Emergent Technologies (IC_ASET), p. 406-411, 2019. |
Synthèse dóbservateurs intervalles pour les systèmes linéaires à commutations : application au diagnostic Thèse de doctorat ENIG, 2019. |
Contribution à la conception, la modélisation et la commande d’un quadricoptère Thèse de doctorat ENIG, 2019. |
CONTRIBUTIONS A L’IDENTIFICATION DES SYSTÈMES PAR MODÈLE NON ENTIER DANS UN CONTEXTE A ERREURS BORNÉES PAR UNE APPROCHE ORTHOTOPIQUE Thèse de doctorat ENIG, 2019. |
Integral synergetic FTC for HVAC system Inproceedings 15th European Workshop on Advanced Control and Diagnosis, ACD'19, Bologna, Italy, 2019. |
On the fractional closed-loop linear parameter varying system identification under noise corrupted scheduling and output signal measurements Article de journal Transactions of the Institute of Measurement and Control, 41 (10), p. 2909–2921, 2019. |
Fractional Interval Observers And Initialization Of Fractional Systems Article de journal Communications in Nonlinear Science and Numerical Simulation, p. 105030, 2019, ISSN: 1007-5704. |
Etudes sur les méthodes de détection et de commande tolérante aux défauts pour les machines synchrones à aimants permanents Thèse de doctorat 2019. |
Diagnostic du système bâtiment: Nouveaux défis Thèse de doctorat 2019. |
Investigation du crime électronique: Application de la fusion de données pour la détection díntrusions Thèse de doctorat 2019. |
Contribution à la navigation et la perception des robots mobiles Thèse de doctorat 2019. |
Diagnostic et commande tolérantes aux défauts des systèmes dórdre non entier à retard Thèse de doctorat 2019. |
Sur la commande tolérante aux défauts de systèmes non linéaire: Application aux systèmes robotisés Thèse de doctorat 2019. |
Modélisation et commande d'une prothèse active Thèse de doctorat 2019. |
Tracking Control Design for Fractional Systems with Time Delay Inproceedings p. 280-285, 2019. |
Features extraction and land cover classification using Sentinel 2 data Inproceedings 2019 19th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA), p. 497-500, 2019. |
Instrumental variables based methods for linear systems identification with fractional models in the EIV context Inproceedings 2019 16th International Multi-Conference on Systems, Signals Devices (SSD), p. 90-95, 2019. |
Stability and Active Fault-Tolerant Control design for a class of neutral time-delay systems Inproceedings p. 24-29, 2019. |
Dynamic Modelling of a Flexible Single-link Manipulator using Hamilton's Principle Inproceedings 2019. |
Dynamic Modeling of a Rigid-Flexible Manipulator using Hamilton’s Principle Inproceedings 2019. |
An adaptive Fuzzy-PID control of a lower limb active prosthesis under external perturbations Inproceedings p. 96-101, 2019. |
Delay dependent stability analysis of Takagi-Sugeno fuzzy time-delays system Article de journal International Journal of Digital Signals and Smart Systems, 3 , p. 150, 2019. |
Design of a Compact Meshed Antennas for 5G Communication Systems Article de journal International Journal of Electrical, Electronic and Communication Sciences, 12.0 (11), 2019. |
Synergetic Control for HVAC System Control and VAV Box Fault Compensation Article de journal International Journal of Applied Mathematics and Computer Science, 29 , p. 555-570, 2019. |
2018 |
Optimisation des performances de diagnostic et de commande tolérante aux défauts des systèmes stochastiques Thèse de doctorat ENIG, 2018. |
Contribution à l’identification des systèmes par modèle non entier à paramètres variants Thèse de doctorat ENIG, 2018. |
FILTRAGE DES SYSTEMES STOCHASTIQUES A ENTREES INCONNUES: APPLICATION A LA DETECTION ET L’ESTIMATION DES CYBER-ATTAQUES Thèse de doctorat ENIG, 2018. |
ANALYSE DYNAMIQUE ET TECHNIQUES DE CONTROLE DES MANIPULATEURS FLEXIBLES Thèse de doctorat ENIG, 2018. |
CONTRIBUTION A LA PLANIFICATION DE TRAJECTOIRE D’UN SYSTÈME MULTI-ROBOTS DANS UN MILIEU DYNAMIQUE Thèse de doctorat ENIG, 2018. |
Adaptive Fault Tolerant Control of Multi-time-scale Singularly Perturbed Systems Article de journal International Journal of Automation and Computing, 15 (6), p. 736–746, 2018, ISSN: 1751-8520. |
CONTRIBUTION A L’OPTIMISATION D’ ENERGIE DANS LE RESEAU DE CAPTEURS SANS FIL : STANDARD IEEE 802.15.4 Thèse de doctorat ENIG, 2018. |
Contribution à la commande de la Machine synchrone à aimants permanents par la méthode des éléments finis Thèse de doctorat ENIG, 2018. |
Sur le Diagnostic et la Commande Tolérante aux Défauts : Approche Synergétique Thèse de doctorat ENIG, 2018. |
Observation et commande d’une classe de systèmes non linéaires à temps discret Thèse de doctorat ENIG, Université de Loraine, 2018, (Cotutelle). |
ANALYSE, SEGMENTATION ET CLASSIFICATION DES IMAGES 3D Thèse de doctorat ENIG, 2018. |
Contribution à la Commande Non Entière des Systèmes Non Linéaires : Approche par Perturbations singulières et Approche Multimodèles Thèse de doctorat ENIG, 2018. |
Analyse des Interférences en Réseaux Mobiles 4G (LTE-Advanced) Thèse de doctorat ENIG, 2018. |