DocumentCode
9529
Title
Extended-aperture DOA estimation with unknown number of sources
Author
Ye Tian ; He Xu
Author_Institution
Sch. of Inf. Sci. & Technol., Yanshan Univ., Qinhuangdao, China
Volume
51
Issue
7
fYear
2015
fDate
4 2 2015
Firstpage
583
Lastpage
584
Abstract
Most of the existing direction-of-arrival (DOA) estimation methods require a priori knowledge of the source number, and can only estimate M- 1 sources with M sensors. A novel technique for a sparse signal reconstruction framework is proposed, which is unbiased and can extend the array aperture effectively. As a result, the proposed technique can not only estimate 2(M- 1) sources with M sensors, but also provide improved resolution and estimation accuracy. It can even obtain DOA estimation without knowing the number of sources.
Keywords
array signal processing; direction-of-arrival estimation; signal reconstruction; M sensors; M-1 sources; array aperture; direction-of-arrival estimation methods; extended-aperture DOA estimation; source number; sparse signal reconstruction framework;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2014.4293
Filename
7073768
Link To Document