The effects of preprocessing on direction of arrival estimation

Anthony J. Weiss, Benjamin Friedlander

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Numerous authors have advocated the use of preprocessing in high-resolution direction finding algorithms. The benefits cited include reduced computation, improved performance in spatially colored noise, and enhanced resolution. In this paper we derive the preprocessing matrices which provide minimum variance estimates for a number of models and algorithms. We then study the Cramer Rao Bound (CRB) for Gaussian signals, the CRB for deterministic signals, and the asymptotic variance of the MUSIC estimator, for the preprocessed data. The effect of array manifold errors on direction estimation accuracy is also examined.

Original languageEnglish
Title of host publicationIEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1993
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages544-547
Number of pages4
ISBN (Electronic)0780309464
DOIs
StatePublished - 1993
Event1993 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1993 - Minneapolis, United States
Duration: 27 Apr 199330 Apr 1993

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume4
ISSN (Print)1520-6149

Conference

Conference1993 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1993
Country/TerritoryUnited States
CityMinneapolis
Period27/04/9330/04/93

Funding

FundersFunder number
U.S. Army Communications
Army Research OfficeDAALO3-91-C-0022

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