A root-MUSIC algorithm for non circular sources

Author

Charge, Pascal ; Wang, Yide ; Saillard, Joseph

Author_Institution

Ecole polytechnique, Nantes Univ., France

Volume

5

fYear

2001

fDate

2001

Firstpage

2985

Abstract

We present in this paper a new direction finding algorithm for non circular sources that is based on polynomial rooting. Due to the non circularity characteristics of the impinging sources, the proposed method is able to handle more sources than sensors. By using a polynomial rooting instead of a searching technique the method is limited to linear uniformly spaced arrays. However, polynomial rooting reduces significantly computation cost and enhances resolution power. Computer simulations are used to show the performance of the algorithm

Keywords

array signal processing; covariance matrices; direction-of-arrival estimation; linear antenna arrays; polynomials; signal classification; DOA estimation; computer simulations; covariance matrix; direction finding algorithm; linear uniformly spaced arrays; multiple signal classification; noncircular sources; polynomial rooting; resolution power enhancement; root-MUSIC algorithm; sensor array; Artificial satellites; Computational efficiency; Covariance matrix; Data models; Direction of arrival estimation; Mobile communication; Narrowband; Phase modulation; Polynomials; Sensor arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on

Conference_Location

Salt Lake City, UT

ISSN

1520-6149

Print_ISBN

0-7803-7041-4

Type

conf

DOI

10.1109/ICASSP.2001.940276

Filename

940276