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A comparison of adaptive beamforming implementations for wideband scenarios

Koh, C.L. and Weiss, S. and Liu, Wei (2005) A comparison of adaptive beamforming implementations for wideband scenarios. In: 2nd IEE/EURASIP Conference on DSP Enabled Radio, 2005-09-19 - 2005-09-20, Southampton.

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Abstract

In this paper, we compare low cost implementations of wideband adaptive beamformers utilising the generalised sidelobe canceller (GSC) in combination with the least-mean squares algorithms. {DFT} based techniques suffer from unjustified narrowband assumptions. We therefore derive and investigate an overlap-save implementation of the {GSC}, which offers a steady state suppression of jammers equivalent to a time domain GSC but may be prone to slow convergence. Finally, subband techniques offer a more robust convergence trade-off for a somewhat higher computational cost. Analysis and simulation results revealing some of the algorithms' properties are presented.

Item type: Conference or Workshop Item (Paper)
ID code: 37817
Keywords: comparison, adaptive beamforming, implementations, wideband scenarios, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
Depositing user: Pure Administrator
Date Deposited: 22 Feb 2012 15:19
Last modified: 04 Oct 2012 17:17
URI: http://strathprints.strath.ac.uk/id/eprint/37817

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