Title :
A modified cumulant matrix for DOA estimation
Author :
Chen, Yuan-Hwang ; Lin, Yih-Sheng
Author_Institution :
Inst. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
fDate :
11/1/1994 12:00:00 AM
Abstract :
Presents a modification of the fourth-order cumulant matrix Cg proposed by one source. The modification consists of taking certain submatrices of Cg and using them to apply the ESPRIT principle with general arrays which may not be composed of matched sensor doublets, or to perform spatial smoothing to deal with the coherent sources in the cumulant domain. Computer simulations are carried out to illustrate the effectiveness of the modified cumulant matrix
Keywords :
direction-of-arrival estimation; higher order statistics; matrix algebra; parameter estimation; DOA estimation; ESPRIT principle; coherent sources; computer simulations; fourth-order cumulant matrix; modified cumulant matrix; spatial smoothing; submatrices; Direction of arrival estimation; Gaussian noise; Maximum likelihood estimation; Parameter estimation; Random variables; Sensor arrays; Signal processing; Speech; Statistics; Stochastic resonance;
Journal_Title :
Signal Processing, IEEE Transactions on
