NDLI: Copy correlation direction-of-arrival estimation performance

Content Provider	IEEE Xplore Digital Library
Author	Richmond, C.D. Forsythe, K.W. Flynn, C.R.
Copyright Year	2012
Description	Author affiliation: Stevens Institute of Technology, New Jersey, USA (Flynn, C.R.) \|\| MIT Lincoln Laboratory, Lexington, MA 02420, USA (Richmond, C.D.; Forsythe, K.W.)
Abstract	The mean squared error performance of a copy weight correlation (CC) based method of angle estimation proposed by Forsythe and Richmond is studied via application of the method of interval error (MIE). It is demonstrated that at low SNRs the CC method leans heavily on the a priori information embedded in the copy weight, but at high SNRs reverts to the Capon algorithm estimate. This prior information can be quite advantageous when accurate (e.g. it can mitigate the threshold effect altogether), but possibly detrimental if either inaccurate or difficult to match (e.g. due to poorly known array calibration). It is shown here that the error probabilities used in MIE capture the threshold effects induced by mismatch, and correctly predict MSE performance over a wide range of scenarios.
Starting Page	273
Ending Page	276
File Size	510159
Page Count	4
File Format	PDF
ISBN	9781467310703
ISSN	2151870X
e-ISBN	9781467310710
DOI	10.1109/SAM.2012.6250487
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Direction of arrival estimation Signal to noise ratio Correlation Arrays Estimation Error probability Coherence copy weight Blind beamformer Bayesian DOA estimation threshold effect mismatch signal copy
Content Type	Text
Resource Type	Article

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