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Spatial smoothing with uniform circular arrays

Reddy, Maheswara K and Reddy, VU (1998) Spatial smoothing with uniform circular arrays. In: Sadhana, 23 (Pt.1). pp. 17-27.

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Abstract

In this paper, we extend and analyse spatial smoothing with uniform circular arrays (UCA's). In particular, we study the performance of the Root-MUSIC with smoothing in the presence of correlated sources, finite data perturbations and errors in transformed steering vector that arise due to some approximations made to enable the extension of the Root-MUSIC and smoothing to UCA. Expressions are derived for the asymptotic performance of the Root-MUSIC with smoothing applied to the transformed UCA data. An attempt has been made to bring out the impact of both forward and forward-backward smoothing. Computer simulations are provided to demonstrate the usefulness of the analysis.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Indian Acad. Sci.
Keywords: Uniform circular arrays;Phase modes;Direction of arrival estimation;Spatial smoothing
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 08 Jan 2007
Last Modified: 19 Sep 2010 04:33
URI: http://eprints.iisc.ernet.in/id/eprint/9282

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