基于累计量辨识非最小相位FIR系统的新方法

李玮; 萧允治

基于累计量辨识非最小相位FIR系统的新方法

李玮,
萧允治

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- 被引次数: 0
出版历程
- 收稿日期: 1999-03-15
- 修回日期: 1999-11-08
- 刊出日期: 2000-11-19

NEW APPROACH TO FIR SYSTEM IDENTIFICATION USING HIGHER ORDER CUMULANTS

Li Wei,
Siu Wan-Chi

摘要

摘要: 该文考虑用带有噪声输出数据的累计量实现对非最小相位PIR系统的参数辨识问题。提出一个新的基于高阶累计量的方法。其特点如下，(1)灵活性：采用了两个任意阶次相邻的输出累计量；(2)线性：方法的表达式相对于未知量为线性。这不同于其它一些已存在的算法。因而，避免了额外的滞后处理，可提高参数估计的准确性。本文在ARMA高斯噪声及三种实际噪声情况下，做了大量的实验。结果表明，本文提出的算法不仅能有效地完成参数估计，而且，在低信噪比下，其估计结果比其它已有的算法更准确。
- PIR系统;高阶累计量;参数估计
Abstract: The problem of identifying the parameters of the nonminimum phase FIR system from the cumulants of noisy output samples is addressed. A novel method by using higher-order cumulants is proposed with the following advantages. (1) Flexibility: the method employs two arbitrary adjacent order cumulants of output.(2) Linearity: the formulation in the method is linear with respect to the unknowns, unlike the existing cumulant-based algorithms. The post-processing is thus avoided.

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参考文献(1)

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