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Single-snapshot DOA estimation and source number detection

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2 Author(s)
Radich, B.M. ; Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA ; Buckley, K.M.

We present a Bayesian solution to the problem of multiple direction of arrival (DOA) detection/estimation from a single temporal observation of array data, where the array can be of general configuration. The proposed method consists of multiple-step likelihood marginalizations using noninformative priors selected specifically to allow valid comparison of alternative model orders. This yields a novel DOA estimation cost function and a new detection algorithm useful for the single-snapshot case.

Published in:

Signal Processing Letters, IEEE  (Volume:4 ,  Issue: 4 )