An augmented affine projection algorithm for the filtering of noncircular complex signals

被引：52

作者：

Xia, Yili ^{[1
]}

Took, Clive Cheong ^{[1
]}

Mandic, Danilo P. ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Elect & Elect Engn, London SW7 2BT, England

来源：

SIGNAL PROCESSING | 2010年 / 90卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

Widely linear modelling; Affine projection algorithm; Complex-valued noncircular signals; Augmented complex statistics; Wind modelling;

D O I：

10.1016/j.sigpro.2009.11.026

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An augmented affine projection adaptive filtering algorithm (AAPA), utilising the full second order statistical information in the complex domain is proposed. This is achieved based on the widely linear model and the joint optimisation of the direct and conjugate data channel parameters. The analysis illustrates that the use of augmented complex statistics and widely linear modelling makes the AAPA suitable for the processing of both second order complex circular (proper) and noncircular (improper) signals. The derivation is supported by the analysis of convergence in the energy conservation setting. Simulations on both benchmark and real-world noncircular wind signals support the analysis. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1788 / 1799

页数：12

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