Pub Date : 2013-10-01DOI: 10.1109/ICOSC.2013.6750848
Roukia Abidat, S. Rebiai, L. Benterrouche
In this work, a one dimensional model of DBD discharge plasma at atmospheric pressure (APP) with helium working gas is presented. This model solves the continuity equations for charged species and the electron energy balance equation, coupled with Poisson's equation, by the finite element method; using COMSOL Multiphysics software. The simulation is performed with dielectric barrier discharge plasma created using peak-to-peak voltage of 1 kV, a discharge gap of 3 mm and a low frequency of 200 Hz. DBD plasma simulation results are given in terms of temporal variations of plasma electric characteristics such gas voltage, discharge current and charge/voltage Lissajous figure. The discharge behavior is studied as a function of external parameters such as the width of the discharge space and the nature of the dielectric through the value of its dielectric constant.
{"title":"Numerical simulation of atmospheric Dielectric Barrier Discharge in helium gas using COMSOL Multiphysics","authors":"Roukia Abidat, S. Rebiai, L. Benterrouche","doi":"10.1109/ICOSC.2013.6750848","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750848","url":null,"abstract":"In this work, a one dimensional model of DBD discharge plasma at atmospheric pressure (APP) with helium working gas is presented. This model solves the continuity equations for charged species and the electron energy balance equation, coupled with Poisson's equation, by the finite element method; using COMSOL Multiphysics software. The simulation is performed with dielectric barrier discharge plasma created using peak-to-peak voltage of 1 kV, a discharge gap of 3 mm and a low frequency of 200 Hz. DBD plasma simulation results are given in terms of temporal variations of plasma electric characteristics such gas voltage, discharge current and charge/voltage Lissajous figure. The discharge behavior is studied as a function of external parameters such as the width of the discharge space and the nature of the dielectric through the value of its dielectric constant.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127595572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICoSC.2013.6750826
S. Nasser, R. Mekki
The segmentation of medical images is a new technology, rich and varied, but in which many existing methods are difficult to apply to real problems. In this work, we present a segmentation system for brain MRI images that is based on two approaches method “growth area” and “FCM” algorithm for each of these approaches, we will explain and illustrate their usefulness. The proposed system aims to improve the segmentation of brain images to classify the three components of the human brain matter in a clearer way in a multi-agent environment.
{"title":"Use of fuzzy logic for segmenting of brain images by multi-agent system","authors":"S. Nasser, R. Mekki","doi":"10.1109/ICoSC.2013.6750826","DOIUrl":"https://doi.org/10.1109/ICoSC.2013.6750826","url":null,"abstract":"The segmentation of medical images is a new technology, rich and varied, but in which many existing methods are difficult to apply to real problems. In this work, we present a segmentation system for brain MRI images that is based on two approaches method “growth area” and “FCM” algorithm for each of these approaches, we will explain and illustrate their usefulness. The proposed system aims to improve the segmentation of brain images to classify the three components of the human brain matter in a clearer way in a multi-agent environment.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"407 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133535306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICOSC.2013.6750904
Abdenbi Mohand Ousaid, S. Haliyo, S. Régnier, V. Hayward
This paper describes a micro-force sensing device where a H-infinity control scheme is used to actively balance the external force and provide the measurement. The force sensing principle is based on the active control of the electrostatic bipolar actuator (comb-drive) within the sensor. An external load force acts on the sensor and displaces the probe. The controller is set to balance the applied force and keep the probe at its null position. As a result, the applied force is obtained in real time from the balancing control signal. A meso-scale prototype has been built as proof-of-concept and an especially designed H-infinity control allows for a measurement accuracy of 0.4 μN over a large range [-400+400] μN.
{"title":"H-infinity optimal control enabled micro-force sensing","authors":"Abdenbi Mohand Ousaid, S. Haliyo, S. Régnier, V. Hayward","doi":"10.1109/ICOSC.2013.6750904","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750904","url":null,"abstract":"This paper describes a micro-force sensing device where a H-infinity control scheme is used to actively balance the external force and provide the measurement. The force sensing principle is based on the active control of the electrostatic bipolar actuator (comb-drive) within the sensor. An external load force acts on the sensor and displaces the probe. The controller is set to balance the applied force and keep the probe at its null position. As a result, the applied force is obtained in real time from the balancing control signal. A meso-scale prototype has been built as proof-of-concept and an especially designed H-infinity control allows for a measurement accuracy of 0.4 μN over a large range [-400+400] μN.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116849998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICOSC.2013.6750882
M. Zoppi, C. Cervone, Gerardo Tiso, F. Vasca
Dry dual clutches are widely used in conventional and innovative automotive vehicles. The engagement control of dry dual clutches is a not easy task because of the synergic interaction of the two clutches in terms of their corresponding torque transmissibility characteristics. In this scenario the so-called software in the loop approach can represent a foundamental preliminary and driving step for hardware in the loop and on vehicle testing of new engagement strategies. This paper proposes a software in the loop model for dry dual clutch transmission control systems, developed by Fiat for new C635 transmission family and its future evolutions. The vehicle model includes the representation of the shift process for a six-speed dry-type dual clutch transmission. The transmission model is used to design a decoupling engagement controller of the dual clutch.
{"title":"Software in the loop model and decoupling control for dual clutch automotive transmissions","authors":"M. Zoppi, C. Cervone, Gerardo Tiso, F. Vasca","doi":"10.1109/ICOSC.2013.6750882","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750882","url":null,"abstract":"Dry dual clutches are widely used in conventional and innovative automotive vehicles. The engagement control of dry dual clutches is a not easy task because of the synergic interaction of the two clutches in terms of their corresponding torque transmissibility characteristics. In this scenario the so-called software in the loop approach can represent a foundamental preliminary and driving step for hardware in the loop and on vehicle testing of new engagement strategies. This paper proposes a software in the loop model for dry dual clutch transmission control systems, developed by Fiat for new C635 transmission family and its future evolutions. The vehicle model includes the representation of the shift process for a six-speed dry-type dual clutch transmission. The transmission model is used to design a decoupling engagement controller of the dual clutch.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131413549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICOSC.2013.6750922
R. H. Hirpara, S. Sharma
The concept of phase tracking has found its applications in GPS systems, radar systems, signal processing and communication systems etc. The phase tracking problem is generally formalized as a non-linear noisy observation equation in which the measurement non-linearity is sinusoid added with additive noise. From the dynamical systems' viewpoint, we state the evolution of the phase angle of the measurement equation. As a result of this, we wish to estimate the phase angle from given observations using two non-linear filters: (i) the extended Kalman filter (ii) a Gaussian non-linear filter. This paper develops two non-linear filters for a filtering model for the phase tracking in which the Ornstein-Uhlenbeck process is the process noise and the Brownian noise process is the observation noise. The filter efficacy is examined by utilizing quite extensive numerical experimentations with two different sets of data. This paper unfolds a connection between coloured noise processes, stochastic filtering methods in systems and control and communications.
{"title":"On a phase tracking problem: Non-linear filtering approaches","authors":"R. H. Hirpara, S. Sharma","doi":"10.1109/ICOSC.2013.6750922","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750922","url":null,"abstract":"The concept of phase tracking has found its applications in GPS systems, radar systems, signal processing and communication systems etc. The phase tracking problem is generally formalized as a non-linear noisy observation equation in which the measurement non-linearity is sinusoid added with additive noise. From the dynamical systems' viewpoint, we state the evolution of the phase angle of the measurement equation. As a result of this, we wish to estimate the phase angle from given observations using two non-linear filters: (i) the extended Kalman filter (ii) a Gaussian non-linear filter. This paper develops two non-linear filters for a filtering model for the phase tracking in which the Ornstein-Uhlenbeck process is the process noise and the Brownian noise process is the observation noise. The filter efficacy is examined by utilizing quite extensive numerical experimentations with two different sets of data. This paper unfolds a connection between coloured noise processes, stochastic filtering methods in systems and control and communications.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128486074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICOSC.2013.6750968
A. Nemra, S. Slimani, M. Bouhamidi, A. Bouchloukh, A. Bazoula
Laser scan-matching is frequently used for mobile robot mapping and localization. This paper presents a scan-matching approach, based, instead on visual information from a stereo system. The Speeded Up Robust Feature (SURF) is used together with optimization tools constraints to get high matching precision between the stereo images. Calculating the 3D position of the corresponding points in the world results in a visual scan where each point has a descriptor attached to it. These descriptors can be used to associate scans observed from different positions. Just like in the work with laser based scan matching a map can be defined as a set of reference scans and their corresponding acquisition point. In this paper a robust Visual odometry and 3D reconstruction algorithm based on Adaptive Iterative Closest SURF for scan matching is proposed. This algorithm combine the robustness of SURF to detect and match good features and the accuracy an Adaptive ICP algorithm in which, the 3D point are weighted with their inverse depth to give more importance for near points. The proposed algorithm is validated and compared with two other optimization techniques based on Singular Values Decomposition (SVD) and Quaternion. Experimental results using Pioneer 3AT demonstrate that our algorithm can work robustly in indoor and outdoor environments and produce accurate results in static environments.
{"title":"Adaptive Iterative Closest SURF for visual scan matching, application to Visual odometry","authors":"A. Nemra, S. Slimani, M. Bouhamidi, A. Bouchloukh, A. Bazoula","doi":"10.1109/ICOSC.2013.6750968","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750968","url":null,"abstract":"Laser scan-matching is frequently used for mobile robot mapping and localization. This paper presents a scan-matching approach, based, instead on visual information from a stereo system. The Speeded Up Robust Feature (SURF) is used together with optimization tools constraints to get high matching precision between the stereo images. Calculating the 3D position of the corresponding points in the world results in a visual scan where each point has a descriptor attached to it. These descriptors can be used to associate scans observed from different positions. Just like in the work with laser based scan matching a map can be defined as a set of reference scans and their corresponding acquisition point. In this paper a robust Visual odometry and 3D reconstruction algorithm based on Adaptive Iterative Closest SURF for scan matching is proposed. This algorithm combine the robustness of SURF to detect and match good features and the accuracy an Adaptive ICP algorithm in which, the 3D point are weighted with their inverse depth to give more importance for near points. The proposed algorithm is validated and compared with two other optimization techniques based on Singular Values Decomposition (SVD) and Quaternion. Experimental results using Pioneer 3AT demonstrate that our algorithm can work robustly in indoor and outdoor environments and produce accurate results in static environments.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134217089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICOSC.2013.6750919
A. Adamou-Mitiche, L. Mitiche, Saliha Younsi
Three recent methods for model reduction of linear discrete systems are presented. They are based on the impulse response gramian which contains information on the input-output behavior of the system. The corresponding low order approximants retain the first r Markov parameters and the first r×r elements of the impulse response gramian of the original system. To see the efficiency of each algorithm, these methods are implemented and several simulations are done. From an illustrative example, we can better appreciate their performances and the closeness of each reduced order model to original system.
{"title":"Markov parameters in the digital systems approximation problem","authors":"A. Adamou-Mitiche, L. Mitiche, Saliha Younsi","doi":"10.1109/ICOSC.2013.6750919","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750919","url":null,"abstract":"Three recent methods for model reduction of linear discrete systems are presented. They are based on the impulse response gramian which contains information on the input-output behavior of the system. The corresponding low order approximants retain the first r Markov parameters and the first r×r elements of the impulse response gramian of the original system. To see the efficiency of each algorithm, these methods are implemented and several simulations are done. From an illustrative example, we can better appreciate their performances and the closeness of each reduced order model to original system.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133082568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICOSC.2013.6750831
Aicha Zibra, S. Labiod, T. Guerra
In this paper, an indirect adaptive controller using fuzzy systems is presented for a class of uncertain single-input single-output nonlinear systems with input magnitude and rate saturation. The unknown system's nonlinearities are approximated by fuzzy systems whose parameters update laws are resulting from the standard Lyapunov synthesis method. Control law and adaptation algorithms are mainly modified to avoid the problems generally caused by saturation such as performance degrading and closed-loop instability. The stability analysis of the overall closed-loop system is performed using the Lyapunov direct method. A numerical simulation example is given to demonstrate the effectiveness of the proposed adaptive control approach.
{"title":"Stable adaptive fuzzy control for a class of uncertain nonlinear systems with input magnitude and rate saturation constraint","authors":"Aicha Zibra, S. Labiod, T. Guerra","doi":"10.1109/ICOSC.2013.6750831","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750831","url":null,"abstract":"In this paper, an indirect adaptive controller using fuzzy systems is presented for a class of uncertain single-input single-output nonlinear systems with input magnitude and rate saturation. The unknown system's nonlinearities are approximated by fuzzy systems whose parameters update laws are resulting from the standard Lyapunov synthesis method. Control law and adaptation algorithms are mainly modified to avoid the problems generally caused by saturation such as performance degrading and closed-loop instability. The stability analysis of the overall closed-loop system is performed using the Lyapunov direct method. A numerical simulation example is given to demonstrate the effectiveness of the proposed adaptive control approach.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132127158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICOSC.2013.6750991
S. Stojanovic, D. Debeljkovic, T. Nestorović, D. Antić
In this paper, the class of linear discrete-time descriptor systems with time-varying exogenous disturbance are considered. Three sufficient conditions for the finite time boundedness and finite-time stability of linear discrete-time descriptor systems are presented. The stability conditions are reduced to a feasibility problem involving linear matrix inequalities. A numerical example has been provided to show the advantage of derived results.
{"title":"Finite-time boundedness analysis of a class of linear discrete descriptor systems: An LMI approach","authors":"S. Stojanovic, D. Debeljkovic, T. Nestorović, D. Antić","doi":"10.1109/ICOSC.2013.6750991","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750991","url":null,"abstract":"In this paper, the class of linear discrete-time descriptor systems with time-varying exogenous disturbance are considered. Three sufficient conditions for the finite time boundedness and finite-time stability of linear discrete-time descriptor systems are presented. The stability conditions are reduced to a feasibility problem involving linear matrix inequalities. A numerical example has been provided to show the advantage of derived results.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129000164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-10-01DOI: 10.1109/ICOSC.2013.6750993
M. Benaouadj, M. Ayad, M. Becherif, A. Aboubou, M. Bahri, O. Akhrif
In this paper, an autonomous Wind/Photovoltaic (PV) hybrid power sources using lead-acid batteries and supercapacitors as storage elements is presented. The lead-acid batteries are used to compensate the power demand which PV and wind generators can't provide. Supercapacitors are employed to relieve the batteries of repeated charging and discharging ensuring longer hybrid source lifetime. The system is designed to supply a residential load. The exchanged power among different components is managed using a nonlinear control based on the flatness concept. Simulation results are presented and discussed for different wind speeds and solar illuminations.
{"title":"Energy flow control of Wind/PV/Batteries/Supercapacitors autonomous hybrid power sources using the flatness concept","authors":"M. Benaouadj, M. Ayad, M. Becherif, A. Aboubou, M. Bahri, O. Akhrif","doi":"10.1109/ICOSC.2013.6750993","DOIUrl":"https://doi.org/10.1109/ICOSC.2013.6750993","url":null,"abstract":"In this paper, an autonomous Wind/Photovoltaic (PV) hybrid power sources using lead-acid batteries and supercapacitors as storage elements is presented. The lead-acid batteries are used to compensate the power demand which PV and wind generators can't provide. Supercapacitors are employed to relieve the batteries of repeated charging and discharging ensuring longer hybrid source lifetime. The system is designed to supply a residential load. The exchanged power among different components is managed using a nonlinear control based on the flatness concept. Simulation results are presented and discussed for different wind speeds and solar illuminations.","PeriodicalId":199135,"journal":{"name":"3rd International Conference on Systems and Control","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128682453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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