DocumentCode
3114774
Title
On the explanation of spatial smoothing in MUSIC algorithm for coherent sources
Author
Chen, Qing ; Liu, Ruolun
fYear
2011
fDate
26-28 March 2011
Firstpage
699
Lastpage
702
Abstract
This paper presents the necessity analysis and the sufficiency analysis of DOA estimation in coherent situation by means of three different aspects respectively, including the rank of covariance matrix, the correlation coefficient and the phase difference between coherent sources. The analyses explain how spatial smoothing decorrelates the coherent sources and how many times of spatial smoothing are needed to decorrelate completely. Simulation results illustrate the sensitivity of the MUSIC algorithm to the number of spatial smoothing.
Keywords
covariance matrices; direction-of-arrival estimation; signal classification; smoothing methods; DOA estimation; MUSIC algorithm; coherent source; correlation coefficient; covariance matrix rank; phase difference; spatial smoothing; sufficiency analysis; Facsimile; Navigation;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Science and Technology (ICIST), 2011 International Conference on
Conference_Location
Nanjing
Print_ISBN
978-1-4244-9440-8
Type
conf
DOI
10.1109/ICIST.2011.5765342
Filename
5765342
Link To Document