Ezcitation Signal Design for Closed-Loop System Identification

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.

关键词： Ezcitation Signal design System identification Iterative method

作者: Liqian Dou Qun Zong Liankun Sun Yuehui Ji

作者单位: College of Electric and Automation Engineering, Tianjin University, Tianjin 300072

会议类型: 国际会议

会议名称: 2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)

会议地点: 广西桂林

会议语种:英文

页码: 1471-1476

在线出版日期: 2009-06-17（万方平台首次上网日期，不代表论文的发表时间）