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A Fast and Robust Algorithm for DOA Estimation of a Spatially Dispersed Source

✍ Scribed by Olivier Besson; Petre Stoica

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
106 KB
Volume
9
Category
Article
ISSN
1051-2004

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✦ Synopsis

In this paper, we consider the fast direction-of-arrival (DOA) estimation for a spatially dispersed source. Using a less detailed model for the part of the covariance matrix that depends on the angular spread, we show that DOA estimation can be decoupled from angular spread estimation. This results in a one-dimensional minimization problem which can be solved using the fast Fourier transform. The so-obtained DOA estimate does not depend on any assumption on the spatial distribution of the source and is, hence, robust to mismodeling. Both theoretical analysis and numerical simulations are presented to illustrate the performance of the method. 1999 Academic Press

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