On spatial smoothing for two-dimensional direction-of-arrival estimation of coherent signals

Author

Chen, Yih-Min

Author_Institution

Dept. of Electr. Eng., Yuan-Ze Inst. of Technol., Chungli, Taiwan

Volume

1

fYear

1994

fDate

31 Oct-2 Nov 1994

Firstpage

648

Abstract

We present an analysis of the spatial smoothing schemes extended for the estimation of two-dimensional directions of arrival of coherent signals using a uniform rectangular array. The scheme extended from the plain spatial smoothing technique is shown requiring at least (2K-1) specifically chosen square subarrays, each with size (K+1)x(K+1) at least, in order to guarantee the “decorrelation” of K coherent signals in all possible situations. The minimum size of the total array is shown to be 2K×2K

Keywords

covariance matrices; direction-of-arrival estimation; signal resolution; smoothing methods; 2D DOA estimation; coherent signals; covariance matrix; decorrelation; direction-of-arrival estimation; high resolution techniques; spatial smoothing; uniform rectangular array; Covariance matrix; Decorrelation; Direction of arrival estimation; Multiple signal classification; Planar arrays; Sensor arrays; Signal resolution; Smoothing methods; Spatial resolution; Two dimensional displays;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 1994. 1994 Conference Record of the Twenty-Eighth Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

0-8186-6405-3

Type

conf

DOI

10.1109/ACSSC.1994.471532

Filename

471532