本文主要研究基于级联形式实现的自适应IIR滤波器(AIIRF).分别讨论预测误差算法(PEA)和利用预测误差及新的收敛梯度对AIIRF参数估计算法的级联AIIRF。与直接形式实现的AIIRF相比,级联AIIRF可直接对其极点估计检测,从而确保AIIRF的稳定性。新算法的参数估计可以收敛于全局最优解,解决了输出误差算法(OEA)中的多局部极小点问题。
The paper investigates the adaptive IIR filter realized with cascade-form
which provides robust stability monitoring with less complexity than the direct-form realization.The adaptive algorithm presented in the paper overcome the problems
such as
initial state and multiple-repeated poles.The convergence performance of adaptive IIR filter illustrated by simulation is improved significantly.
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