Title :
Estimation of the number of sources with DOA priors
Author :
Nezafat, Mahdi ; Kaveh, Mostafa
Author_Institution :
Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN
Abstract :
In this paper, we present a technique for estimating the number of sources based on the eigenvectors of the covariance matrix of received signal at an antenna array when directions of arrival priors are obtained from the received signal, e.g. via a spectral estimation method such as MVDR. The proposed technique is designated the eigenvector order estimation technique (EOET). EOET outperforms AIC, MDL and GDE techniques in practice and provides comparable detection sensitivity as AIC, MDL, and GDE in simulation
Keywords :
antenna arrays; covariance matrices; direction-of-arrival estimation; eigenvalues and eigenfunctions; signal detection; DOA prior; EOET; antenna array; covariance matrix; detection sensitivity; direction-of-arrival estimation; eigenvector order estimation technique; Antenna arrays; Covariance matrix; Direction of arrival estimation; Directive antennas; Eigenvalues and eigenfunctions; Matrix decomposition; Multiple signal classification; Receiving antennas; Signal processing; Signal resolution;
Conference_Titel :
Statistical Signal Processing, 2005 IEEE/SP 13th Workshop on
Conference_Location :
Novosibirsk
Print_ISBN :
0-7803-9403-8
DOI :
10.1109/SSP.2005.1628666
