一类非线性连续系统参数估计方法
A Parameter Estimation Method for A Class of Nonlinear Continuous System
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摘要: 本文提出一类非线性连续系统的参数估计方法.该方法巧妙利用不同幅值的伪随机输入 信号,从原系统中离析出线性子系统.基于线性子系统的参数估计值和集合理论,提出一个零 极点划分的寻优准则.在此准则下,实现对系统参数的估计.仿真结果表明,该方法的计算速 度较快且估值精度较高.Abstract: A parameter estimation method is proposed for a class of nonlinear continuous system. This method uses periodic sequences of different magnitudes as inputs to extract a linear subsystem so that the set theory, parameter estimation, optimization, pole zero separation, can be applied. Simulation shows that the calculation needed can be done rather fast and the accuracy of the estimated parameters is relatively high.
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Key words:
- Parameter estimation /
- input signal /
- optimization criterion
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