High-speed DOA estimation using beamspace MUSIC

Author

Odachi, Noriaki ; Shoki, Hiroki ; Suzuki, Yasuo

Author_Institution

Corp. Res. & Dev. Center, Toshiba Corp., Kawasaki, Japan

Volume

2

fYear

2000

fDate

2000

Firstpage

1050

Abstract

MUSIC (multiple signal classification) has been widely used to estimate the direction of arrivals (DOAs) accurately. However, this method requires a large calculation time for eigen-decomposition of the covariance matrix. This paper presents a high-speed DOA estimation based on the beamspace MUSIC, which can reduce the order of the covariance matrix. The proposed method implements a two-step DOA estimation. The first step is the coarse estimation in which the DOAs are roughly estimated. The second step is the fine estimation in which the result of the coarse estimation is exploited and the DOAs are accurately estimated

Keywords

array signal processing; covariance matrices; direction-of-arrival estimation; eigenvalues and eigenfunctions; matrix decomposition; signal classification; signal resolution; beamspace MUSIC; coarse estimation; covariance matrix; direction of arrivals estimation; eigen-decomposition; fine estimation; high-resolution direction-finding; high-speed DOA estimation; multiple signal classification; two-step DOA estimation; Antenna accessories; Antenna arrays; Covariance matrix; Direction of arrival estimation; Directive antennas; Electronic mail; Multiple signal classification; Navigation; Signal analysis; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st

Conference_Location

Tokyo

ISSN

1090-3038

Print_ISBN

0-7803-5718-3

Type

conf

DOI

10.1109/VETECS.2000.851285

Filename

851285