On the achievable tracking performance of NCSs over SNR limited channels

被引：15
作者：
Jiang, Xiaowei [1 ,2 ,3 ]
Chen, Xiangyong [2 ,3 ]
Hu, Junwei [4 ]
Yan, Huaicheng [4 ]
Ge, Mingfeng [5 ]
机构：
[1] China Univ Geosci, Sch Automat, Wuhan 430074, Hubei, Peoples R China
[2] Linyi Univ, Sch Automat & Elect Engn, Linyi 276005, Shandong, Peoples R China
[3] Hubei Key Lab Adv Control & Intelligent Automat C, Wuhan 435002, Hubei, Peoples R China
[4] Hubei Normal Univ, Coll Mechatron & Control Engn, Huangshi 435002, Hubei, Peoples R China
[5] China Univ Geosci, Sch Mech Engn & Elect Informat, Wuhan 430074, Hubei, Peoples R China
来源：
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS | 2019年 / 356卷 / 06期
基金：
中国国家自然科学基金;
关键词：
NETWORKED CONTROL-SYSTEMS; STABILIZATION; LIMITATIONS;
D O I：
10.1016/j.jfranklin.2019.02.016
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, the achievable tracking performance limitations of discrete-time, multi-input multi-output (MIMO) networked control systems (NCSs) are studied. The channel is modeled as an additive white Gaussian noise and signal-to-noise ratio (SNR) limited channel with feedback. Under this framework, the closed relationships among stabilization, tracking performance, and SNR limited are quantitatively revealed. Some new results a.erived according to the allpass factorization and Youla parameterization of two degrees of freedom controller. The results show that the best tracking performance is in connection with the unstable poles, non-minimum phase zeros of the system. It is also demonstrated that the tracking performance will be badly degraded by feedback channel noise and due to the SNR limited. Finally, a simulation example is presented to validate the conclusions. (C) 2019 Published by Elsevier Ltd on behalf of The Franklin Institute.
引用
收藏
页码：3353 / 3367
页数：15
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