Further results in spatial smoothing

Reddy, K. Maheswara ; Reddy, V. U. (1996) Further results in spatial smoothing Signal Processing, 48 (3). pp. 217-224. ISSN 0165-1684

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/016516...

Related URL: http://dx.doi.org/10.1016/0165-1684(95)00137-9

Abstract

The paper analyses the effect of spatial smoothing on the performance of MUSIC algorithm. In particular, an attempt is made to bring out two effects of the smoothing: (i) reduction of effective correlation between the impinging signals and (ii) reduction of the noise perturbations due to finite data. For the case of a two-source scenario with widely spaced sources, simplified expressions for improvement with smoothing have been obtained which provide more insight into the impact of smoothing. Specifically, a pessimistic estimate of the minimum value of source correlation beyond which the smoothing is beneficial is brought out by these expressions. Computer simulations are used to demonstrate the usefulness of the analytical results.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Smoothing; DOA Estimation
ID Code:45192
Deposited On:25 Jun 2011 09:39
Last Modified:25 Jun 2011 09:39

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