Distributed source modeling and direction-of-arrival estimation techniques

Author

Lee, Yong Up ; Choi, Jinho ; Song, Iickho ; Lee, Seong Ro

Author_Institution

Wireless Commun. Res. Team, Samsung Electron. Co. Ltd., Seoul, South Korea

Volume

45

Issue

4

fYear

1997

fDate

4/1/1997 12:00:00 AM

Firstpage

960

Lastpage

969

Abstract

In direction-of-arrival (DOA) estimation, the direction of a signal is usually assumed to be a point. If the direction of a signal is distributed due to some environmental phenomenon, however, DOA estimation methods based on the point source assumption may result in poor performance. We consider DOA estimation when the signal sources are distributed. Parametric and nonparametric models are proposed, and estimation methods are considered under these models. In addition, the asymptotic distribution of estimation errors is obtained to show the models´ statistical properties

Keywords

array signal processing; direction-of-arrival estimation; error analysis; statistical analysis; DOA estimation methods; array signal processing; asymptotic distribution; direction-of-arrival estimation; distributed signal sources; distributed source modeling; environmental phenomenon; estimation errors; nonparametric models; parametric models; point source assumption; statistical properties; Array signal processing; Covariance matrix; Direction of arrival estimation; Estimation error; Frequency estimation; Maximum likelihood estimation; Multiple signal classification; Phased arrays; Radar scattering; Smoothing methods;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/78.564184

Filename

564184