Optimal performance of networked control systems with bandwidth and coding constraints
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Xi-Sheng Zhan1, Xin-xiang Sun1, Tao Li2
1College of Mechatronics and Control Engineering, Hubei Normal University, Huangshi 435002, China.
Abstract:
The optimal tracking performance of multiple-input multiple-output (MIMO) discrete-time networked control systems with bandwidth and coding constraints is studied in this paper. The optimal tracking performance of networked control system is obtained by using spectral factorization technique and partial fraction. The obtained results demonstrate that the optimal performance is influenced by the directions and locations of the nonminimum phase zeros and unstable poles of the given plant. In addition to that, the characters of the reference signal, encoding, the bandwidth and additive white Gaussian noise (AWGN) of the communication channel are also closely influenced by the optimal tracking performance. Some typical examples are given to illustrate the theoretical results.
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