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Range and Bearing Estimation of Wideband Sources Using an Orthogonal Beamspace Processing Structure

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Date

2004

Authors

Ward, Debbie E
Abhayapala, Thushara

Journal Title

Journal ISSN

Volume Title

Publisher

Institute of Electrical and Electronics Engineers (IEEE Inc)

Abstract

We propose a new method for range and bearing estimation of wideband sources based on a novel beamspace structure. The proposed structure consists of an orthogonal set of beamspace processors that have a frequency-invariant beampattern property, and can be steered easily to any nearfield range while maintaining the frequency-invariance of the spatial response. These properties mean that the proposed structure can perform coherent signal subspace processing for nearfield wideband sources, making it ideal for wideband range and bearing estimation. Performance of the estimator is demonstrated through Monte Carlo simulations.

Description

Keywords

Keywords: Arrays; Broadband amplifiers; Computer simulation; Data acquisition; Frequencies; Matrix algebra; Monte Carlo methods; Parameter estimation; Sensors; Beamspace processing; Beamspace structure; Bearing estimation; Wideband sources; Signal processing

Citation

URI

http://hdl.handle.net/1885/78205

Collections

ANU Research Publications

Source

Proceedings of the 2004 IEEE International Conference on Acoustics, Speech and Signal Processing

Type

Conference paper

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