| 一种基于Pade近似的频域辨识与频域模型降阶新方法 |
| |
| 引用本文： | 王学雷,邵惠鹤. 一种基于Pade近似的频域辨识与频域模型降阶新方法[J]. 控制理论与应用, 2003, 20(1): 54-58 |
| |
| 作者姓名： | 王学雷 邵惠鹤 |
| |
| 作者单位： | 上海交通大学,自动化研究所,上海,200030 |
| |
| 摘 要： | 研究了基于积分最小二乘指标的SISO时滞系统频域辨识与频域模型降阶问题.通过采用Pade近似,将积分最小二乘指标推广到可以处理时滞系统的情形.深入分析了Pade近似所引入误差,揭示了采用Pade近似的可行性与有效性.所提出的方法能够用最小二乘类算法高效求解,无须困难的非线性优化.仿真验证了所提出方法的有效性.
|
| 关 键 词： | 频域辨识 模型降阶 积分最小二乘指标 Pade近似 最小二乘法 |
| 文章编号： | 1000-8152(2003)01-0054-05 |
| 收稿时间： | 2000-12-08 |
| 修稿时间： | 2002-01-09 |
New method of frequency-domain identification and model reduction based on Pade approximation |
| |
| WANG Xue-lei,SHAO Hui-he. New method of frequency-domain identification and model reduction based on Pade approximation[J]. Control Theory & Applications, 2003, 20(1): 54-58 |
| |
| Authors: | WANG Xue-lei SHAO Hui-he |
| |
| Affiliation: | Institute of Automation, Shanghai Jiaotong University, Shanghai 200030,China |
| |
| Abstract: | Based on the integral least-squares index, a new approach to frequency-domain identification and model reduction of SISO systems with delay is proposed. With the adoption of Pade approximation, the integral least-squares index is extended to the case of systems with delay. Through error analysis, the feasibility and effectiveness of Pade approximation is shown. The least-squares style algorithm can be applied in the method and troublesome nonlinear optimization is avoided. Illustrative simulations are offered to verify the effectiveness of proposed scheme. |
| |
| Keywords: | frequency-domain identification model reduction integral least-squares index Pade approximation least-square method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《控制理论与应用》浏览原始摘要信息 |
|
点击此处可从《控制理论与应用》下载全文 |
