TY - GEN
T1 - Detecting the number of sources using modified EGM
AU - Zhang, Qunfei
AU - Yin, Yuhong
AU - Huang, Jianguo
PY - 2006
Y1 - 2006
N2 - In the array signal process field, to estimate the direction of arrival (DOA) of sources, it is a key problem to estimate the number of signal source correctly. Luo Jingqing proposed a set of Eigenvalue Gradient Methods[1](EGMs), which showed better performances of number-detection than traditional AIC and MDL method. However, EGMs doesn't take the false-alarm probability (PFA) into account, which causes high PFA while no source exists. In this paper, after some analysis to the average eigenvalue-gradient distribution of the pure noise auto-correlation matrix, a modification is introduced to improve the PFA performance of EGMs. Computer simulation results shows that the modification is efficient, and bring only tiny loss of number-detection probability in very low SNR.
AB - In the array signal process field, to estimate the direction of arrival (DOA) of sources, it is a key problem to estimate the number of signal source correctly. Luo Jingqing proposed a set of Eigenvalue Gradient Methods[1](EGMs), which showed better performances of number-detection than traditional AIC and MDL method. However, EGMs doesn't take the false-alarm probability (PFA) into account, which causes high PFA while no source exists. In this paper, after some analysis to the average eigenvalue-gradient distribution of the pure noise auto-correlation matrix, a modification is introduced to improve the PFA performance of EGMs. Computer simulation results shows that the modification is efficient, and bring only tiny loss of number-detection probability in very low SNR.
UR - http://www.scopus.com/inward/record.url?scp=34547579654&partnerID=8YFLogxK
U2 - 10.1109/TENCON.2006.343913
DO - 10.1109/TENCON.2006.343913
M3 - 会议稿件
AN - SCOPUS:34547579654
SN - 1424405491
SN - 9781424405497
T3 - IEEE Region 10 Annual International Conference, Proceedings/TENCON
BT - 2006 IEEE Region 10 Conference, TENCON 2006
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2006 IEEE Region 10 Conference, TENCON 2006
Y2 - 14 November 2006 through 17 November 2006
ER -