DocumentCode :
2136078
Title :
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
Link To Document :
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