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本文介绍了一种自动调整遗忘因子的快速时变参数辨识方法.这种方法主要是在文献[1,2]的基础上改进了遗忘因子的选取方法,引入了自动调整遗忘因子,以适应导弹控制系统等快速时变系统的参数估计要求.数字仿真结果表明,这种辨识方法对于诸如参数的指数变化、斜坡变化、阶跃变化、正弦变化、方波变化以及由这些变化形式构成的混合变化,都有比较好的辨识效果.
This paper presents a fast and time-varying parameter identification method that automatically adjusts the forgetting factor.This method mainly improves the selection method of forgetting factor based on the literature [1, 2], introduces the automatic forgetting factor adjustment to adapt to the missile Control system, etc. The results of numerical simulation show that this identification method is very useful for exponential changes such as parameters, slope changes, step changes, sinusoidal changes, square wave changes, and mixed changes made by these changes , Have better identification results.