基于递推最小二乘法的温箱系统辨识

摘要

Warm case is wideIy used in the daiIy Iife.The accurate controI of warm case has been an important subject.Therefore, the confirmation and anaIysis of warm case are quite significant.This paper takes the warm case as an identification object. To get the identification statistics,an array of M identification signaIs is given to the warm case system at the basis of ther-mostabiIization of warm case.This paper adopts the RLS theory to identify the warm case and uses the ResiduaI to confirm the order of the system and the mathematicaI modeI. At Iast,the accuracy of the identification is examined by MATLAB.%温箱在生活中应用越来越广泛，对于温箱的精确控制已成为一项重要课题，所以对于温箱模型的分析和确定十分重要。以温箱为辨识对象，在温箱热稳定的基础上给温箱输入 M 序列辨识信号来获取辨识数据。采用递推最小二乘法对温箱进行辨识并按照残差定阶法对温箱系统进行定阶、定型。最后在 MATLAB 中仿真并验证。