Focusing matrices for wideband array processing with no a priori angle estimates

Author

Hong, Wooyoung ; Tewfik, Ahmed H.

Author_Institution

Dept. of Electron. Eng., Naval Aad., Kyoungham, South Korea

Volume

2

fYear

1992

fDate

23-26 Mar 1992

Firstpage

493

Abstract

A class of data transformation matrices is introduced for the estimation of angles of arrivals of multiple wideband sources. The proposed transformation matrices are unitary and minimize the average of the squared norm of the focusing error over the angles of interest without prior knowledge of source locations. They can also be used with the multigroup sources and lead to lower resolution thresholds than those obtained with other techniques. A comparison of the statistical performance of the proposed focusing procedure with that of the spatial resampling method is provided

Keywords

array signal processing; matrix algebra; angles of arrivals estimation; average; data transformation matrices; focusing error; focusing matrices; multiple wideband sources; resolution thresholds; spatial resampling method; squared norm; statistical performance; unitary matrices; wideband array processing; Array signal processing; Background noise; Narrowband; Radar signal processing; Sensor arrays; Sensor phenomena and characterization; Signal processing; Signal resolution; Spatial resolution; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on

Conference_Location

San Francisco, CA

ISSN

1520-6149

Print_ISBN

0-7803-0532-9

Type

conf

DOI

10.1109/ICASSP.1992.226012

Filename

226012