一种改进的变记忆长度辨识算法

An Improved Variable Memory Length Identification Algorithm

本文基于多分辨分析方法 ,提出了一种改进的变记忆长度的小波变换多分辨分析方法 ,该方法将辨识的数据分解到不同频段 ,然后针对各不同频段采用不同的记忆长度进行辨识 ,通过对某航空涡轮起动机系统辨识的实例 ,表明该方法可以有效地提高系统辨识的精度。

Based on multiresolution analysis method,an improved variable memory length wavelet transform multiresolution analysis method is proposed.The method decomposes data into different frequency segments,then for different frequency segments different memory lengths are used for identification.An aero-turbine starter is taken as a numerical example,and the simulation results show the method is effective to improve identification precision.