A Comparison of Adaptive Beamforming Implementations for Wideband Scenarios
A Comparison of Adaptive Beamforming Implementations for Wideband Scenarios
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.
0863415601
28/1-28/7
Koh, CL
8190864c-bfac-4eb1-90f9-e12ce61ad71e
Liu, W
622f6d44-225b-4d4e-9ed9-839e234e7163
Weiss, S
a1716781-351d-41d2-8d67-3e3d34f16476
Weiss, S
a1716781-351d-41d2-8d67-3e3d34f16476
2005
Koh, CL
8190864c-bfac-4eb1-90f9-e12ce61ad71e
Liu, W
622f6d44-225b-4d4e-9ed9-839e234e7163
Weiss, S
a1716781-351d-41d2-8d67-3e3d34f16476
Weiss, S
a1716781-351d-41d2-8d67-3e3d34f16476
Koh, CL, Liu, W and Weiss, S
(2005)
A Comparison of Adaptive Beamforming Implementations for Wideband Scenarios.
Weiss, S
(ed.)
2nd IEE/EURASIP Conference on DSP Enabled Radio, University of Southampton.
19 - 20 Sep 2005.
.
Record type:
Conference or Workshop Item
(Paper)
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.
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augustine_dsp05.pdf
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Published date: 2005
Additional Information:
Event Dates: September 19-20
Venue - Dates:
2nd IEE/EURASIP Conference on DSP Enabled Radio, University of Southampton, 2005-09-19 - 2005-09-20
Organisations:
Electronics & Computer Science
Identifiers
Local EPrints ID: 261250
URI: http://eprints.soton.ac.uk/id/eprint/261250
ISBN: 0863415601
PURE UUID: ba80b72e-e7cd-4f02-ad8c-87fb14798f0f
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Date deposited: 23 Sep 2005
Last modified: 14 Mar 2024 06:50
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Contributors
Author:
CL Koh
Author:
W Liu
Author:
S Weiss
Editor:
S Weiss
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