OPTIMAL WIDELY LINEAR MVDR BEAMFORMING FOR NONCIRCULAR SIGNALS

被引：70

作者：

Chevalier, Pascal ^{[1
]}

Delmas, Jean-Pierre ^{[2
]}

Oukaci, Abdelkader ^{[2
]}

机构：

[1] EDS SPM, Thales Commun, F-92704 Colombes, France

[2] CNRS, UMR 5157, Telecom SudPairs, Fukui 91011, Japan

来源：

2009 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS 1- 8, PROCEEDINGS | 2009年

关键词：

Noncircular; widely linear; interference; beamforming; MVDR beamforming; INTERFERENCES;

D O I：

10.1109/ICASSP.2009.4960398

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper introduces the optimal widely linear (WL) minimum variance distorsionless response (MVDR) beamformer for the reception of an unknown signal of interest (SO) corrupted by potentially second order (SO) noncircular background noise and interference. The SOI, whose waveform is unknown, is assumed to be SO noncircular with arbitrary noncircular properties. In the steady state and for SO noncircular SOI and/or interference, this new WL beamformer, that is derived from an original orthogonal decomposition, is shown to always improve the performance of both the well-known Capon's beamformer and a WL MVDR beamformer introduced recently in the literature. This optimal WL MVDR beamformer is first introduced and some of its performance are analyzed. Then, several adaptive implementations of this optimal WL beamformer are presented.

引用

页码：3573 / +

页数：2

共 7 条

[1] BLIND BEAMFORMING FOR NON-GAUSSIAN SIGNALS [J].