Resolution enhanced MUSIC-like DOA estimation algorithm without estimating the number of sources

Author

Zhang Ying ; Zhao Huapeng

Author_Institution

Coll. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2012

fDate

27-29 Aug. 2012

Firstpage

289

Lastpage

290

Abstract

In this paper, we propose a new DOA estimation algorithm which achieves better resolution than the MUSIC algorithm and does not require estimation of the number of sources. Snapshots and steering vector used in the new algorithm are proposed to be constructed in the form of a second-order Volterra filter. To avoid estimation of the number of sources, we introduce a new optimization problem to realize DOA estimation in the framework of beamforming. Computer simulations are conducted to demonstrate validity and superiority of the proposed algorithm.

Keywords

array signal processing; direction-of-arrival estimation; nonlinear filters; optimisation; signal classification; signal resolution; beamforming; computer simulations; optimisation problem; resolution enhanced MUSIC-like DOA estimation algorithm; second-order Volterra filter; snapshots; steering vector; Adaptive filters; Arrays; Direction of arrival estimation; Estimation; Filtering algorithms; Multiple signal classification; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APCAP), 2012 IEEE Asia-Pacific Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4673-0666-9

Type

conf

DOI

10.1109/APCAP.2012.6333259

Filename

6333259