The Experts below are selected from a list of 6 Experts worldwide ranked by ideXlab platform
Singh, Sahjendra N. - One of the best experts on this subject based on the ideXlab platform.
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Modular Adaptive Control of Chaos in Chua’s Circuit
Digital Scholarship@UNLV, 2005Co-Authors: Maganti Ganesh, Singh, Sahjendra N.Abstract:In this paper, a modular adaptive design is developed for the control of chaos in a Chuas Circuit. The dynamics of the Chuas Circuit are represented in a parametric strict feedback form. For the purpose of design, it is assumed that all the system parameters are unknown, but the sign of certain parameters and lower bounds on their absolute values are known. Then, an adaptive modular backstepping design approach is used to derive the control system for trajectory tracking of a selected output variable (node voltage). Unlike the direct adaptive controllers for the Chuas Circuit available in literature, an input-to-state-stabilizing control law is used herein. The control law accomplishes input-to-state-stability with respect to parameter estimation errors and their derivatives as disturbance inputs. The control system includes a passive identifier (an observer and an adaptation law) for the parameter estimation. In the closed-loop system, control of the node voltage is accomplished, and the remaining state variables remain bounded. Simulation results are presented which show that the controller is effective in accomplishing the precise tracking of the reference trajectory and suppression of the chaotic motion
Ye Mengjiao - One of the best experts on this subject based on the ideXlab platform.
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A secure communication scheme using chaotic system array
2015 34th Chinese Control Conference (CCC), 2015Co-Authors: Li Jinlong, Yang Lun, Li Jiagen, He Mengju, Zhang Qiang, Ye MengjiaoAbstract:Secure communication is one of the most promising application of chaos theory. As chaotic signals were noise-like, unpredictable, using chaotic systems to design secure communication system is feasible and reliable. In this paper, we form an array with different kinds of chaotic system, and discuss the control method of the chaotic system array. A secure communication scheme based on the chaotic systems array is proposed. The masking signal of the new scheme is generated though processing the chaotic system array output signals with mathematical operations, signal process method or encryption algorithms. The types of chaotic system that formed chaotic system array, the control method of the array and the algorithms used for signal process can secondarily encrypt the secure communication system, which can make it work on a safer statue. The simulation results of basic secure communication cases which were built with Lorenz system and Chuas Circuit show secure communication system constructed with chaotic system array works on a high security statue. The secure communication system built with chaotic system array is flexible, reliable, and achievable. When the secure communication system based on chaotic system array is constructed with FPGA, DSP and other ICs, it's worth a further study of the application of this system in engineering.
Maganti Ganesh - One of the best experts on this subject based on the ideXlab platform.
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Modular Adaptive Control of Chaos in Chua’s Circuit
Digital Scholarship@UNLV, 2005Co-Authors: Maganti Ganesh, Singh, Sahjendra N.Abstract:In this paper, a modular adaptive design is developed for the control of chaos in a Chuas Circuit. The dynamics of the Chuas Circuit are represented in a parametric strict feedback form. For the purpose of design, it is assumed that all the system parameters are unknown, but the sign of certain parameters and lower bounds on their absolute values are known. Then, an adaptive modular backstepping design approach is used to derive the control system for trajectory tracking of a selected output variable (node voltage). Unlike the direct adaptive controllers for the Chuas Circuit available in literature, an input-to-state-stabilizing control law is used herein. The control law accomplishes input-to-state-stability with respect to parameter estimation errors and their derivatives as disturbance inputs. The control system includes a passive identifier (an observer and an adaptation law) for the parameter estimation. In the closed-loop system, control of the node voltage is accomplished, and the remaining state variables remain bounded. Simulation results are presented which show that the controller is effective in accomplishing the precise tracking of the reference trajectory and suppression of the chaotic motion
Li Jinlong - One of the best experts on this subject based on the ideXlab platform.
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A secure communication scheme using chaotic system array
2015 34th Chinese Control Conference (CCC), 2015Co-Authors: Li Jinlong, Yang Lun, Li Jiagen, He Mengju, Zhang Qiang, Ye MengjiaoAbstract:Secure communication is one of the most promising application of chaos theory. As chaotic signals were noise-like, unpredictable, using chaotic systems to design secure communication system is feasible and reliable. In this paper, we form an array with different kinds of chaotic system, and discuss the control method of the chaotic system array. A secure communication scheme based on the chaotic systems array is proposed. The masking signal of the new scheme is generated though processing the chaotic system array output signals with mathematical operations, signal process method or encryption algorithms. The types of chaotic system that formed chaotic system array, the control method of the array and the algorithms used for signal process can secondarily encrypt the secure communication system, which can make it work on a safer statue. The simulation results of basic secure communication cases which were built with Lorenz system and Chuas Circuit show secure communication system constructed with chaotic system array works on a high security statue. The secure communication system built with chaotic system array is flexible, reliable, and achievable. When the secure communication system based on chaotic system array is constructed with FPGA, DSP and other ICs, it's worth a further study of the application of this system in engineering.
Yang Lun - One of the best experts on this subject based on the ideXlab platform.
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A secure communication scheme using chaotic system array
2015 34th Chinese Control Conference (CCC), 2015Co-Authors: Li Jinlong, Yang Lun, Li Jiagen, He Mengju, Zhang Qiang, Ye MengjiaoAbstract:Secure communication is one of the most promising application of chaos theory. As chaotic signals were noise-like, unpredictable, using chaotic systems to design secure communication system is feasible and reliable. In this paper, we form an array with different kinds of chaotic system, and discuss the control method of the chaotic system array. A secure communication scheme based on the chaotic systems array is proposed. The masking signal of the new scheme is generated though processing the chaotic system array output signals with mathematical operations, signal process method or encryption algorithms. The types of chaotic system that formed chaotic system array, the control method of the array and the algorithms used for signal process can secondarily encrypt the secure communication system, which can make it work on a safer statue. The simulation results of basic secure communication cases which were built with Lorenz system and Chuas Circuit show secure communication system constructed with chaotic system array works on a high security statue. The secure communication system built with chaotic system array is flexible, reliable, and achievable. When the secure communication system based on chaotic system array is constructed with FPGA, DSP and other ICs, it's worth a further study of the application of this system in engineering.