TY - GEN
T1 - A novel joint method for source number and DOA estimation for closely spaced sources
AU - Gao, Yang
AU - Xu, Jia
AU - Jia, Xin
AU - Long, Teng
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/8/31
Y1 - 2015/8/31
N2 - The source number and direction of arrival (DOA) estimation are two key issues in array signal processing, and the estimation performance will degrade severely for closely spaced sources with large power differences. Especially for the weak sources, the interference from the closely spaced strong sources will disable most traditional algorithms to estimate accurately. In this paper, a novel joint estimation method is proposed for source number and DOA estimation. Through obtaining the eigen spatial spectrum of each eigenvector and comparing the spectrum peak with the threshold, the proposed method can effectively improve the source number and DOA estimation performance, especially for weak sources. Finally, numerical experiments are provided to demonstrate the effectiveness of the proposed method.
AB - The source number and direction of arrival (DOA) estimation are two key issues in array signal processing, and the estimation performance will degrade severely for closely spaced sources with large power differences. Especially for the weak sources, the interference from the closely spaced strong sources will disable most traditional algorithms to estimate accurately. In this paper, a novel joint estimation method is proposed for source number and DOA estimation. Through obtaining the eigen spatial spectrum of each eigenvector and comparing the spectrum peak with the threshold, the proposed method can effectively improve the source number and DOA estimation performance, especially for weak sources. Finally, numerical experiments are provided to demonstrate the effectiveness of the proposed method.
KW - Closely Spaced Sources
KW - DOA
KW - Joint Estimation Method
KW - Source Number
UR - https://www.scopus.com/pages/publications/84957597195
U2 - 10.1109/ChinaSIP.2015.7230376
DO - 10.1109/ChinaSIP.2015.7230376
M3 - Conference contribution
AN - SCOPUS:84957597195
T3 - 2015 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2015 - Proceedings
SP - 128
EP - 131
BT - 2015 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2015
Y2 - 12 July 2015 through 15 July 2015
ER -