Analysis of spatial smoothing with uniform circular arrays

Reddy, K. Maheswara ; Reddy, V. U. (1999) Analysis of spatial smoothing with uniform circular arrays IEEE Transactions on Signal Processing, 47 (6). p. 1726. ISSN 1053-587X

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Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumb...

Related URL: http://dx.doi.org/10.1109/78.765150

Abstract

In this correspondence, we analyze spatial smoothing withuniform 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 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 UCA's with isotropic as well as directional sensors in our study. Computer simulations are provided to demonstrate the usefulness of the analysis.

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Deposited On:25 Jun 2011 09:51
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