Pub Date : 2016-03-21DOI: 10.1109/SSD.2016.7473686
M. Ksantini, M. Hammami, F. Delmotte
This paper deals with the problem of stabilization based feedback controller for a class of Takagi-Sugeno fuzzy nonlinear systems. Some sufficient conditions are given for the global stability of the closed-loop fuzzy control systems. An example is given to illustrate the applicability of the main result.
{"title":"On the stabilization of a certain class of Takagi-Sugeno fuzzy systems","authors":"M. Ksantini, M. Hammami, F. Delmotte","doi":"10.1109/SSD.2016.7473686","DOIUrl":"https://doi.org/10.1109/SSD.2016.7473686","url":null,"abstract":"This paper deals with the problem of stabilization based feedback controller for a class of Takagi-Sugeno fuzzy nonlinear systems. Some sufficient conditions are given for the global stability of the closed-loop fuzzy control systems. An example is given to illustrate the applicability of the main result.","PeriodicalId":149580,"journal":{"name":"2016 13th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125776233","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 : 2016-03-21DOI: 10.1109/SSD.2016.7473726
Rick Vosswinkel, Frank Schrödel, Nils Denker, K. Röbenack, D. Abel, Hendrik Richter
Calculating the stabilising parameter space of descriptor and switching systems is non-trivial. In this paper a new approach for the stability region calculation for descriptor and switching systems is presented by using a Lyapunov stability mapping method. This method has several advantages over the existing parameter space approaches. Currently, the calculation of the complex root boundaries relies on frequency sweeping or decoupling at singular frequencies. The new proposed method avoids this while reducing the computational complexity and increasing the practicality of the method at the same time.
{"title":"Lyapunov stability bounds mapping for descriptor and switching systems","authors":"Rick Vosswinkel, Frank Schrödel, Nils Denker, K. Röbenack, D. Abel, Hendrik Richter","doi":"10.1109/SSD.2016.7473726","DOIUrl":"https://doi.org/10.1109/SSD.2016.7473726","url":null,"abstract":"Calculating the stabilising parameter space of descriptor and switching systems is non-trivial. In this paper a new approach for the stability region calculation for descriptor and switching systems is presented by using a Lyapunov stability mapping method. This method has several advantages over the existing parameter space approaches. Currently, the calculation of the complex root boundaries relies on frequency sweeping or decoupling at singular frequencies. The new proposed method avoids this while reducing the computational complexity and increasing the practicality of the method at the same time.","PeriodicalId":149580,"journal":{"name":"2016 13th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128656219","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 : 2016-03-21DOI: 10.1109/SSD.2016.7473666
G. B. H. Frej, A. Thabet, M. Boutayeb, M. Aoun
This paper presents a method for the design of decentralized state observer-based control for a class of systems which are modeled as nonlinear subsystems linked by nonlinear time varying interconnections. The non linearity of each subsystem satisfies the Lipschitz condition and the only information about the nonlinear interconnection is that satisfies a quadratic constraint. The key to our work is, in one hand, the reformulation of the Lipschitz condition and the quadratic constraint using the differential mean value to simplify the design of estimation and control matrices gains, and in another hand the use of the Lyapunov's direct method stability analysis. Sufficient conditions that ensure the existence of observer based feedback controller are established in terms of linear matrix inequalities. A numerical example is given to mark the effectiveness of the control design.
{"title":"Decentralized observer-based control of nonlinear interconnected systems with nonlinear dynamics","authors":"G. B. H. Frej, A. Thabet, M. Boutayeb, M. Aoun","doi":"10.1109/SSD.2016.7473666","DOIUrl":"https://doi.org/10.1109/SSD.2016.7473666","url":null,"abstract":"This paper presents a method for the design of decentralized state observer-based control for a class of systems which are modeled as nonlinear subsystems linked by nonlinear time varying interconnections. The non linearity of each subsystem satisfies the Lipschitz condition and the only information about the nonlinear interconnection is that satisfies a quadratic constraint. The key to our work is, in one hand, the reformulation of the Lipschitz condition and the quadratic constraint using the differential mean value to simplify the design of estimation and control matrices gains, and in another hand the use of the Lyapunov's direct method stability analysis. Sufficient conditions that ensure the existence of observer based feedback controller are established in terms of linear matrix inequalities. A numerical example is given to mark the effectiveness of the control design.","PeriodicalId":149580,"journal":{"name":"2016 13th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132926815","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 : 2016-03-21DOI: 10.1109/SSD.2016.7473663
L. Jacobs, M. Guenach, M. Moeneclaey
In this contribution, we present a multiple-input multiple-output (MIMO) transceiver scheme for high-speed chip-to-chip communication over low-cost electrical interconnects. Linear MIMO pre-equalization at the transmitter is combined with decision feedback equalization (DFE) at the receiver to counteract the adverse effect of inter symbol interference (ISI) and crosstalk (XT). Considering an energy constraint at the transmit side, we derive elegant closed-form expressions for the equalization filters under a minimum mean square error (MMSE) criterion. Numerical analysis shows that the combination of linear MIMO pre-equalization and MIMO DFE allows to significantly improve the reliability of future high-speed off-chip communication.
{"title":"MIMO pre-equalization and DFE for high-speed off-chip communication","authors":"L. Jacobs, M. Guenach, M. Moeneclaey","doi":"10.1109/SSD.2016.7473663","DOIUrl":"https://doi.org/10.1109/SSD.2016.7473663","url":null,"abstract":"In this contribution, we present a multiple-input multiple-output (MIMO) transceiver scheme for high-speed chip-to-chip communication over low-cost electrical interconnects. Linear MIMO pre-equalization at the transmitter is combined with decision feedback equalization (DFE) at the receiver to counteract the adverse effect of inter symbol interference (ISI) and crosstalk (XT). Considering an energy constraint at the transmit side, we derive elegant closed-form expressions for the equalization filters under a minimum mean square error (MMSE) criterion. Numerical analysis shows that the combination of linear MIMO pre-equalization and MIMO DFE allows to significantly improve the reliability of future high-speed off-chip communication.","PeriodicalId":149580,"journal":{"name":"2016 13th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"8 15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130308653","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 : 2016-03-21DOI: 10.1109/SSD.2016.7473745
Z. Muhsin, Anas M. Al-Taee, M. Al-Taee, W. Al-Nuaimy, Ali Al-Ataby
The Internet of Things (IoT) is an emerging computing concept, which fuses the digital world and the physical world by bringing together different concepts and technical components. In this paper, we present a new mobile workflow management system (MWfMS) that handles the service of computer and peripherals repair and maintenance. It allows for (i) submission of service requests, (ii) provision of real-time notifications on work progress, (iii) automatic assignment and distribution of workload among the technical-support staff, and (iv) provision of quick solutions to known problems taken from database, without having to register for a new service request. The proposed MWfMS comprises a physical layer linked by the Internet to a remote workflow management hub (WfMH). The real objects (i.e. system stakeholders and their mobile devices represent the physical layer. The WfMH that hosts the main business logic and data storage is responsible for virtualization of physical objects, and creation and delivery of various management services to the end users. A fully functional prototype of the proposed system is designed and developed and its end-to-end functionality is tested successfully.
{"title":"Mobile workflow management system based on the Internet of Things","authors":"Z. Muhsin, Anas M. Al-Taee, M. Al-Taee, W. Al-Nuaimy, Ali Al-Ataby","doi":"10.1109/SSD.2016.7473745","DOIUrl":"https://doi.org/10.1109/SSD.2016.7473745","url":null,"abstract":"The Internet of Things (IoT) is an emerging computing concept, which fuses the digital world and the physical world by bringing together different concepts and technical components. In this paper, we present a new mobile workflow management system (MWfMS) that handles the service of computer and peripherals repair and maintenance. It allows for (i) submission of service requests, (ii) provision of real-time notifications on work progress, (iii) automatic assignment and distribution of workload among the technical-support staff, and (iv) provision of quick solutions to known problems taken from database, without having to register for a new service request. The proposed MWfMS comprises a physical layer linked by the Internet to a remote workflow management hub (WfMH). The real objects (i.e. system stakeholders and their mobile devices represent the physical layer. The WfMH that hosts the main business logic and data storage is responsible for virtualization of physical objects, and creation and delivery of various management services to the end users. A fully functional prototype of the proposed system is designed and developed and its end-to-end functionality is tested successfully.","PeriodicalId":149580,"journal":{"name":"2016 13th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129029333","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 : 2016-03-21DOI: 10.1109/SSD.2016.7473769
Y. Bouteraa, Ismail Ben Abdallah
In this paper, the design of a new upper limb rehabilitation system is presented. The developed system is an exoskeleton with two degrees of freedom that can be used for diagnosis, physical therapy, and outcome evaluation. The system is dedicated to the patients with paraplegia of their upper extremities due to stroke or any disorders of the central or peripheral nervous system. The designed robot-aided therapy actuates both movements: flexion/extension for the elbow and pronation/supination for the forearm. The robotic system used Kinects skeletal tracking for an upper limb rehabilitation. Position control is communicated via a wireless network. Indeed a ZigBee protocol using xbee communication modules has been installed to ensure remote control of rehabilitation exercise. A kinematic model has been developed based on Denavit-Hartenberg approach to make first tests. A sliding mode robust law control has been implemented. The Lyapunov-based approach has been used to establish the system asymptotic stability. Experimental results are provided to demonstrate performances of the developed robot of upper limb remote rehabilitation.
{"title":"Exoskeleton robots for upper-limb rehabilitation","authors":"Y. Bouteraa, Ismail Ben Abdallah","doi":"10.1109/SSD.2016.7473769","DOIUrl":"https://doi.org/10.1109/SSD.2016.7473769","url":null,"abstract":"In this paper, the design of a new upper limb rehabilitation system is presented. The developed system is an exoskeleton with two degrees of freedom that can be used for diagnosis, physical therapy, and outcome evaluation. The system is dedicated to the patients with paraplegia of their upper extremities due to stroke or any disorders of the central or peripheral nervous system. The designed robot-aided therapy actuates both movements: flexion/extension for the elbow and pronation/supination for the forearm. The robotic system used Kinects skeletal tracking for an upper limb rehabilitation. Position control is communicated via a wireless network. Indeed a ZigBee protocol using xbee communication modules has been installed to ensure remote control of rehabilitation exercise. A kinematic model has been developed based on Denavit-Hartenberg approach to make first tests. A sliding mode robust law control has been implemented. The Lyapunov-based approach has been used to establish the system asymptotic stability. Experimental results are provided to demonstrate performances of the developed robot of upper limb remote rehabilitation.","PeriodicalId":149580,"journal":{"name":"2016 13th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128437542","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 : 2016-03-21DOI: 10.1109/SSD.2016.7473747
Safa Issaoui, Ridha Ejbeli, T. Frikha, Mohamed Abid
The development of multimedia embedded applications continues to increase. As an example, image recognition applications are not only developed for the PCs but also for the embedded systems such as the face recognition, the texture detection and the edge detection. In this paper, we will present a hardware architecture based on an adaptation approach. To validate this architecture, an edge detection approach is chosen. To illustrate the proposed approach, vehicle registration plate recognition is proposed. The latter application was tested in a first time by a software implementation. n a second time, we use the co design technique based on a mixed Hardware Software architecture. The used platform for the implementation is the Xilinx ML 507 FPGA platform.
多媒体嵌入式应用的开发不断增加。例如，图像识别的应用不仅局限于pc机，而且还应用于嵌入式系统，如人脸识别、纹理检测和边缘检测。在本文中，我们将提出一种基于自适应方法的硬件架构。为了验证这种结构，选择了一种边缘检测方法。为了说明所提出的方法，提出了车牌识别。后一个应用程序通过软件实现进行了第一次测试。第二次，我们采用了基于混合软硬件体系结构的协同设计技术。所使用的实现平台是Xilinx ML 507 FPGA平台。
{"title":"Embedded approach for edge recognition: Case study: Vehicle registration plate recognition","authors":"Safa Issaoui, Ridha Ejbeli, T. Frikha, Mohamed Abid","doi":"10.1109/SSD.2016.7473747","DOIUrl":"https://doi.org/10.1109/SSD.2016.7473747","url":null,"abstract":"The development of multimedia embedded applications continues to increase. As an example, image recognition applications are not only developed for the PCs but also for the embedded systems such as the face recognition, the texture detection and the edge detection. In this paper, we will present a hardware architecture based on an adaptation approach. To validate this architecture, an edge detection approach is chosen. To illustrate the proposed approach, vehicle registration plate recognition is proposed. The latter application was tested in a first time by a software implementation. n a second time, we use the co design technique based on a mixed Hardware Software architecture. The used platform for the implementation is the Xilinx ML 507 FPGA platform.","PeriodicalId":149580,"journal":{"name":"2016 13th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133416940","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 : 2016-03-21DOI: 10.1109/SSD.2016.7473735
G. B. Khadher, A. Zidouri
This paper investigates the use of fractional Fourier transform (FrFT)-based Orthogonal Frequency Division Multiplexing for Synthetic Aperture Radar (SAR) imaging for single point target and extended target. The geometry of synthetic aperture radar using FrFT-based OFDM is presented with the developing algorithm to process the raw data to reconstruct the image of the target in the range and in the Azimuth direction. In the simulation results, single point target is assumed to be at the center of swath width to show the performance of this approach as well as the point spread function in the range and Azimuth direction. Extended target with the shape of tank is used to show the capability of this method in resolving extended target images.
{"title":"OFDM synthetic aperture radar based on fractional fourier transform","authors":"G. B. Khadher, A. Zidouri","doi":"10.1109/SSD.2016.7473735","DOIUrl":"https://doi.org/10.1109/SSD.2016.7473735","url":null,"abstract":"This paper investigates the use of fractional Fourier transform (FrFT)-based Orthogonal Frequency Division Multiplexing for Synthetic Aperture Radar (SAR) imaging for single point target and extended target. The geometry of synthetic aperture radar using FrFT-based OFDM is presented with the developing algorithm to process the raw data to reconstruct the image of the target in the range and in the Azimuth direction. In the simulation results, single point target is assumed to be at the center of swath width to show the performance of this approach as well as the point spread function in the range and Azimuth direction. Extended target with the shape of tank is used to show the capability of this method in resolving extended target images.","PeriodicalId":149580,"journal":{"name":"2016 13th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132490120","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 : 2016-03-21DOI: 10.1109/SSD.2016.7473682
A. Cuadras, F. Meinert, P. Büschel, O. Kanoun
The widespread use of batteries requires knowledge of their state of health (SoH). In this paper we present a method to use entropy evolution as an aging indicator for batteries. Voltage, current and temperature are monitored in battery cells used in cellphones and in real-time operation. Irreversible entropy is estimated from irreversible energy dissipation in the battery for long periods of use. Simple open circuit battery voltage Uocv models were evaluated and compared to lab measured Uocv. It was found that the entropy generation rate is always increasing during battery operation and that irreversible entropy is a fingerprint of aging for batteries.
{"title":"Online cellphone battery entropy measurement for SoH estimation","authors":"A. Cuadras, F. Meinert, P. Büschel, O. Kanoun","doi":"10.1109/SSD.2016.7473682","DOIUrl":"https://doi.org/10.1109/SSD.2016.7473682","url":null,"abstract":"The widespread use of batteries requires knowledge of their state of health (SoH). In this paper we present a method to use entropy evolution as an aging indicator for batteries. Voltage, current and temperature are monitored in battery cells used in cellphones and in real-time operation. Irreversible entropy is estimated from irreversible energy dissipation in the battery for long periods of use. Simple open circuit battery voltage Uocv models were evaluated and compared to lab measured Uocv. It was found that the entropy generation rate is always increasing during battery operation and that irreversible entropy is a fingerprint of aging for batteries.","PeriodicalId":149580,"journal":{"name":"2016 13th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123375694","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 : 2016-03-21DOI: 10.1109/SSD.2016.7473742
Chenzi Huang, K. Röbenack, Carsten Knoll
In this paper we propose a method to generate piecewise constant control within finite time horizon for a nonlinear system. Local (weak) controllability related to accessibility properties with piecewise constant control is analyzed and used directly for control purposes. More precisely, we concatenate flows of vector fields of the system to generate appropriate constant input values. The method is applied to an underactuated manipulator model which fails to meet the Brockett condition but possesses controllability properties which are also analyzed in this paper. Simulation results show the feasibility of this method.
{"title":"Semi-analytic finite horizon control of an underactuated manipulator","authors":"Chenzi Huang, K. Röbenack, Carsten Knoll","doi":"10.1109/SSD.2016.7473742","DOIUrl":"https://doi.org/10.1109/SSD.2016.7473742","url":null,"abstract":"In this paper we propose a method to generate piecewise constant control within finite time horizon for a nonlinear system. Local (weak) controllability related to accessibility properties with piecewise constant control is analyzed and used directly for control purposes. More precisely, we concatenate flows of vector fields of the system to generate appropriate constant input values. The method is applied to an underactuated manipulator model which fails to meet the Brockett condition but possesses controllability properties which are also analyzed in this paper. Simulation results show the feasibility of this method.","PeriodicalId":149580,"journal":{"name":"2016 13th International Multi-Conference on Systems, Signals & Devices (SSD)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129316450","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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