一种实现舵机带宽测试的系统辨识方法

本文讲述的是一种应用加权递推的最小二乘辨识算法测试舵机带宽的实用方法。文章简要介绍了舵机的工作特性和舵机模型的选取，概述了辨识算法的选取及实现过程，并在输入信号的选取和辨识数据的预处理等方面作了基本的探讨。文章还应用大量的实验数据分析了加权系数和遗忘因子的选取对实验结果的影响，最后验证了辨识结果的有效性。

An Application of System Identification In Testing the Bandwidth of Actuator

An efficient method for testing the band wi dth of actuator, weighted recursive least squares identification arithmetic, is presented in this paper. The paper briefly introduces the working characteristic s of actuator, the method for choosing the model of actuator and the identificat ion arithmetic It also discusses how to choose the input and preprocessing the d ata for identification. Then it educes a valid modulus and missing-gene by analy zing a great deal of data from the experiment. Finally, it verified the validity of the identification result.