限定记忆最小二乘辨识与非对称缸液压系统  

Least Square Identification Method with Restricted Memory and Non-Symmetrical Hydraulic Servo-System

作　　者：黄静[1] 李长春[1] 刘晓东[1] 张金英[1] 刘展[1] 

机构地区：[1]北京交通大学机械与电子控制工程学院,北京100044

出　　处：《液压气动与密封》2008年第6期7-10,共4页Hydraulics Pneumatics & Seals

摘　　要：针对非对称液压缸系统,以PRMS信号为激励信号,对比了普通最小二乘法与限定记忆最小二乘法在开环辨识中的辨识效果。并将限定记忆最小二乘辨识方法所得的辨识模型同实际系统的输出进行了对比和验证,证实了限定记忆最小二乘辨识方法的有效性。Aiming to non-symmetrical hydraulic servo-system, use PRMS signal as excite signal, and compare the identification result of least square method with restricted memory to the resul： of normal least square method. Finally, demonstrate the validity of least square identification method with restricted memory by comparing the mathematic model of this non-symmetrical hydraulic servo-system with actual system＇s output.

关 键 词：非对称液压缸系统 限定记忆最小二乘法 开环系统辨识 PRMS信号 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]