摘要
本文介绍的非线性动态系统中的典型Weiener模型如“线性—限幅”系统,“线性—死区一限幅”系统和典型Hammerstein模型如“死区—线性”系统,“滞环—线性”系统参数辨识方法,是在只知道系统输入和输出,而不知道中间变量任何信息的情况下,利用频谱分析方法,辨识出系统中线性和非线性部分全部参数的。最后,还对非线性特性辨识结果进行确认性检验。
In the nonlinear dynamics system, for the typical Weiener model, for example, 'linear-lim-iter' system, 'linear-dead space-limiter' system, and the typical Hammerstein model, for example, 'dead space-linear' system, 'backlash-linear' system, when no information between nonlinear and linear parts is known, the parameters of its nonlinear and linear parts can be got by means of spectrum analysis method, and conformity of the nonlinear parameters can be verified. The method and steps for identification of the system parameters are also introduced in the paper.
出处
《系统仿真学报》
CAS
CSCD
1992年第4期2-12,共11页
Journal of System Simulation
关键词
辨识
数学模型
非线性
谐波系数
Weiener model, Hammerstein model, Spectrum analysis, Identification, modelling.
