Title :
On spatial smoothing for two-dimensional direction-of-arrival estimation of coherent signals
Author_Institution :
Dept. of Electr. Eng., Yuan-Ze Inst. of Technol., Chungli, Taiwan
fDate :
31 Oct-2 Nov 1994
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;
Conference_Titel :
Signals, Systems and Computers, 1994. 1994 Conference Record of the Twenty-Eighth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-6405-3
DOI :
10.1109/ACSSC.1994.471532
