基于Volterra泛函级数的非线性系统的鲁棒辨识

Robust identification for nonlinear system based on Volterra series

针对弱非线性系统的鲁棒建模问题,基于Volterra泛函级数,结合集员辨识理论,提出了广义频率响应函数的鲁棒辨识方法,形成了一套较完整的弱非线性系统的鲁棒建模方法,仿真结果表明该方法是行之有效的。

For the robust modeling problem of weakly nonlinear system, based on Volterra series, a robust identification method for generalized frequency response function is presented by use of set membership identification theory. Then a systematic robust modeling method for weak nonlinear system is raised. Simulation results show its effectiveness.