Excitation Signal Design for Closed-Loop System Identification

被引：1
|
作者：
Dou, Liqian [1 ]
Zong, Qun [1 ]
Sun, Liankun [1 ]
Ji, Yuehui [1 ]
机构：
[1] Tianjin Univ, Coll Elect & Automat Engn, Tianjin 300072, Peoples R China
来源：
CCDC 2009: 21ST CHINESE CONTROL AND DECISION CONFERENCE, VOLS 1-6, PROCEEDINGS | 2009年
关键词：
Excitation Signal design; System identification; Iterative method;
D O I：
10.1109/CCDC.2009.5192214
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
An iterative optimal excitation signal design method is presented to select an optimal signal for closed-loop system identification. The control performance criteria is used as the criteria for optimizing excitation signal, and the robust stability of closed-loop identification and power spectrum constraints for excitation signal, control signal and output signal are considered. Based on these, the paper formulize optimal excitation signal design problem and solve power spectrum of excitation signal. Finally, an iterative method is used to solve optimal excitation signal and identify system model. Simulation result shows that model quality by closed-loop identification is improved by using excitation signal optimal method proposed in this paper.
引用
收藏
页码：1471 / 1476
页数：6
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