DocumentCode :
3068357
Title :
Capability of array processing algorithms to estimate source bearings
Author :
De Graaf, Stuart R. ; Johnson, Don H.
Author_Institution :
Rice University, Houston, Texas
Volume :
8
fYear :
1983
fDate :
30407
Firstpage :
344
Lastpage :
347
Abstract :
The effect of source coherence on the capabilities of classical, minimum energy (ME), and linear predictive (LP) array processing algorithms to estimate the bearings of two equal-energy sources is examined. Source coherence is shown to adversely affect the resolution and detection capabilities, as well as the bias characteristics, of all three algorithms. For linear arrays of equally-spaced sensors (LES arrays), the superior resolution capability of the LP algorithm is demonstrated. However, the LP algorithm is least capable of detecting highly coherent sources. The estimates of source bearing produced by each algorithm are shown to be asymptotically biased.
Keywords :
Acoustic sensors; Algorithm design and analysis; Array signal processing; Energy resolution; Log periodic antennas; Sensor arrays; Sensor phenomena and characterization; Signal processing; Signal resolution; Spatial resolution;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '83.
Type :
conf
DOI :
10.1109/ICASSP.1983.1172271
Filename :
1172271
Link To Document :
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