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Published on: October 1, 2019
Optimal modified tracking performance for MIMO networked control systems with communication constraints
Jie Wu1, Zhu-Jun Zhou1, Xi-Sheng Zhan1
1College of Mechatronics and Control Engineering, Hubei Normal University, Huangshi 435002, China.
Abstract:
This paper investigates the optimal modified tracking performance of multi-input multi-output (MIMO) networked control systems (NCSs) with packet dropouts and bandwidth constraints. Some explicit expressions are obtained by using co-prime factorization and the spectral decomposition technique. The obtained results show that the optimal modified tracking performance is related to the intrinsic properties of a given plant such as non-minimum phase (NMP) zeros, unstable poles, and their directions. Furthermore, the modified factor, packet dropouts probability and bandwidth also impact the optimal modified tracking performance of the NCSs. The optimal modified tracking performance with channel input power constraint is obtained by searching through all stabilizing two-parameter compensator. Finally, some typical examples are given to illustrate the effectiveness of the theoretical results.
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