Augmented MUSIC method and performance analysis

Author

Wan, Q. ; Liu, S.J. ; Yuan, J. ; Peng, Y.N. ; Yang, W.L.

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing, China

fYear

2003

fDate

5-8 May 2003

Firstpage

413

Lastpage

416

Abstract

The traditional MUSIC spatial spectrum is interpreted geometrically. Based on this, a novel augmented MUSIC method for direction-of-arrival (DOA) estimation is proposed by augmenting the measurement matrix with a possible steering vector of an arbitrary array. The signal (or noise) subspace is calculated from the augmented matrix at every possible direction. Theoretical analysis discloses that the proposed estimator has better accuracy performance than MUSIC. Simulations also show that the former obviously outperforms the latter in case of low signal-to-noise ratio and small sample.

Keywords

array signal processing; direction-of-arrival estimation; signal classification; vectors; MUSIC spatial spectrum; arbitrary array; direction-of-arrival estimation; measurement matrix; multiple signal classification method; signal subspace; signal-to-noise ratio; steering vector; Degradation; Direction of arrival estimation; Educational institutions; Multiple signal classification; Narrowband; Performance analysis; Sensor arrays; Signal to noise ratio; Singular value decomposition; Volume measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference, 2003. Proceedings of the 2003 IEEE

Print_ISBN

0-7803-7920-9

Type

conf

DOI

10.1109/NRC.2003.1203434

Filename

1203434