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Analysis of Spatial Smoothing with Uniform Circular Arrays

Reddy, Maheswara K and Reddy, VU (1999) Analysis of Spatial Smoothing with Uniform Circular Arrays. In: IEEE Transactions on Signal Processing, 47 (6). pp. 1726-1730.

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Abstract

In this correspondence, we analyze spatial smoothing with uniform circular arrays (UCAs). 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 while extending 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 the forward and forward-backward smoothing. We consider UCAs with isotropic as well as directional sensors in our study. Computer simulations are provided to demonstrate the usefulness of the analysis.

Item Type: Journal Article
Additional Information: ©1999 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: uniform circular arrays;Root-MUSIC;UCA;finite data perturbations;forward-backward smoothing
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 25 Aug 2008
Last Modified: 19 Sep 2010 04:15
URI: http://eprints.iisc.ernet.in/id/eprint/1656

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