-
摘要: 提出了一种基于小波分解的MIMO系统辨识最优输入信号的设计方法,将小波的多 分辨率分析应用于MIMO系统的最小二乘辨识中,并且与闭环系统的控制性能指标关联起来, 从而得出一种最优实验的设计方法.由于小波变换的多分辨特性和良好的去相关作用(对有色 噪声的白化作用),这种方法能获得比普通的系统辨识方法更好的结果.仿真实验证明了这种方 法的有效性.Abstract: A method of optimal input signal design for MIMO system identification is proposed. We first apply the wavelet multiresolution theory to the least squares MIMO system identification, and combine the input signal with the control performance index of the closed-loop system, then develop a method of optimal experiment design. Due to the multiresolution characteristic and the pre-whitening ability of the wavelet transform, this method could get better results than the existing system identification methods. The simulation result shows the effectiveness of the proposed method.
计量
- 文章访问数: 2138
- HTML全文浏览量: 103
- PDF下载量: 999
- 被引次数: 0