Blind Identification of IIR Systems Based on Subspace Decomposition

CHEN Fang-jiong; WEI Gang

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Blind Identification of IIR Systems Based on Subspace Decomposition

更新时间：2025-07-16

- Blind Identification of IIR Systems Based on Subspace Decomposition
- Acta Electronica Sinica Vol. 30, Issue 1, Pages: 83-86(2002)
- 作者机构：
  
  华南理工大学电子与通信工程系,广东,广州,510640
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.5TN911.7
- Published：2002
- 稿件说明：
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CHEN Fang-jiong, WEI Gang. Blind Identification of IIR Systems Based on Subspace Decomposition[J]. Acta Electronica Sinica, 2002, 30(1): 83-86.
DOI：

CHEN Fang-jiong, WEI Gang. Blind Identification of IIR Systems Based on Subspace Decomposition[J]. Acta Electronica Sinica, 2002, 30(1): 83-86. DOI：

摘要

本文证明了对IIR信道输出进行过采样(采样率是输入码率的整数倍)可以转化成单输入多输出的多信道模型

并且不同的信道有相同的AR系数.基于这一特性本文提出一种基于子空间分解的信道参数盲辩识方法

即不同信道的MA系数可以由输出信号的噪声子空间唯一确定

而AR系数则可以通过求解YW方程得到.

Abstract

In this paper

we prove that oversampling the output of IIR channels can be transformed into a single input multiple output (SIMO) model

and the subchannels have the same AR coefficients.According to this model

a blind identification method is proposed based on subspace.The MA coefficients of the subchannels can be identified by using subspace decomposition.The AR coefficients can be resolved from Yule-Walker equation.

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