Hierarchical Least-squares Identification of Transfer Function and Application on Platform System

摘要：

In this paper, we present a hierarchical least squares iterative (HLSI) algorithm based on a hierarchical identification principle to identify the system transfer function parameters. The algorithm is extended to identify the system parameters through the frequency characteristic obtained by sweep tester or simulink/dSpace system. We prove that the algorithm proposed has better performances than the ident toolbox in Matlab and the existing ones. The iterative results converge to the exact solutions for any initial value. We apply the algorithm into the platform system identification and design the controller based on the iterative identification solution. Finally the performances of platform system open-loop frequency characteristic verify the algorithm validity.

关键词： hierarchical identification principle platform system transfer function controller design frequency characteristic

作者: Xinliang PANG Dapeng FAN Lianchao ZHANG Huazheng ZHU

作者单位: Department of Mechatronics and Automation National University of Defense Technology Changsha, Hunan Province 410073, China

会议类型: 国际会议

会议名称: 2007 IEEE International Conference on Automation and Lofistics

会议地点: 山东济南

会议语种:英文

在线出版日期: 2007-08-18（万方平台首次上网日期，不代表论文的发表时间）