Comparing Efficient Broadband Beamforming Architectures and Their Performance Trade-Offs
Comparing Efficient Broadband Beamforming Architectures and Their Performance Trade-Offs
In this paper, we evaluate efficient implementations of a broadband beamforming structure, that permits to project the data onto subspaces defined by the principle components of the array data. This optimum but computationally expensive approach is approximated in the frequency domain by processing in independent frequency bins. The later is computationally optimal, but suffers from spectral leakage. We show that this problem persists even if the frequency resolution is increased, and that the worst case performance depends on the available degrees for freedoms only. Further, an oversampled subband scheme is proposed, which sacrifices some computational complexity but has a considerably improved and controllable worst case performance.
417-424
Weiss, S.
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Proudler, I.K.
6230af09-8bdd-4760-8203-e7b6c26ba630
Skodras, A. N.
bf8172dd-6ddf-4aca-8593-fd8f4c30fe9a
Constantinides, A. G.
94d30f8e-7c28-4359-812d-91d851882df1
July 2002
Weiss, S.
55a13123-6604-4dad-b647-7347683c8c49
Proudler, I.K.
6230af09-8bdd-4760-8203-e7b6c26ba630
Skodras, A. N.
bf8172dd-6ddf-4aca-8593-fd8f4c30fe9a
Constantinides, A. G.
94d30f8e-7c28-4359-812d-91d851882df1
Weiss, S. and Proudler, I.K.
(2002)
Comparing Efficient Broadband Beamforming Architectures and Their Performance Trade-Offs.
Skodras, A. N. and Constantinides, A. G.
(eds.)
14th IEEE International Conference on Digital Signal Processing(DSP2002), Santorini, Greece.
01 - 03 Jul 2002.
.
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Abstract
In this paper, we evaluate efficient implementations of a broadband beamforming structure, that permits to project the data onto subspaces defined by the principle components of the array data. This optimum but computationally expensive approach is approximated in the frequency domain by processing in independent frequency bins. The later is computationally optimal, but suffers from spectral leakage. We show that this problem persists even if the frequency resolution is increased, and that the worst case performance depends on the available degrees for freedoms only. Further, an oversampled subband scheme is proposed, which sacrifices some computational complexity but has a considerably improved and controllable worst case performance.
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Published date: July 2002
Additional Information:
Event Dates: July 1-3,2002 Address: Santorini, Greece
Venue - Dates:
14th IEEE International Conference on Digital Signal Processing(DSP2002), Santorini, Greece, 2002-07-01 - 2002-07-03
Organisations:
Electronics & Computer Science
Identifiers
Local EPrints ID: 257454
URI: http://eprints.soton.ac.uk/id/eprint/257454
PURE UUID: 811ececf-1358-4ee7-9458-6378185c2ab7
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Date deposited: 13 Jun 2003
Last modified: 14 Mar 2024 05:57
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Contributors
Author:
S. Weiss
Author:
I.K. Proudler
Editor:
A. N. Skodras
Editor:
A. G. Constantinides
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