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A GSC Employing Two-Dimensional Frequency Invariant Filters

A GSC Employing Two-Dimensional Frequency Invariant Filters
A GSC Employing Two-Dimensional Frequency Invariant Filters
In this paper, based on the generalised sidelobe canceller (GSC), we propose a novel broadband adaptive beamformer, where its quiescent vector and blocking matrix are replaced by a series of two dimensional frequency invariant filters (FIFs). The new quiescent vector forms a beam pointing to the signal of interest, whereas the new blocking matrix forms a number of beams pointing in other directions, with a zero response to the signal of interest. As opposed to standard beamspace techniques, the FIFs need not have a very low sidelobe level, and the number of FIFs that can be implemented also increases. Compared with the traditional GSC, a faster convergence speed is achieved in addition to a resultant frequency-invariant beam pattern, as shown by simulations.
0 7803 8545 4
84-88
Liu, W
622f6d44-225b-4d4e-9ed9-839e234e7163
Weiss, S
a1716781-351d-41d2-8d67-3e3d34f16476
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
Liu, W
622f6d44-225b-4d4e-9ed9-839e234e7163
Weiss, S
a1716781-351d-41d2-8d67-3e3d34f16476
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1

Liu, W, Weiss, S and Hanzo, L (2004) A GSC Employing Two-Dimensional Frequency Invariant Filters. Third IEEE Sensor Array and Multidimensional Signal Processing Workshop, Spain. 18 - 21 Jul 2004. pp. 84-88 .

Record type: Conference or Workshop Item (Paper)

Abstract

In this paper, based on the generalised sidelobe canceller (GSC), we propose a novel broadband adaptive beamformer, where its quiescent vector and blocking matrix are replaced by a series of two dimensional frequency invariant filters (FIFs). The new quiescent vector forms a beam pointing to the signal of interest, whereas the new blocking matrix forms a number of beams pointing in other directions, with a zero response to the signal of interest. As opposed to standard beamspace techniques, the FIFs need not have a very low sidelobe level, and the number of FIFs that can be implemented also increases. Compared with the traditional GSC, a faster convergence speed is achieved in addition to a resultant frequency-invariant beam pattern, as shown by simulations.

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More information

Published date: 2004
Additional Information: Event Dates: 18-21 July 2004
Venue - Dates: Third IEEE Sensor Array and Multidimensional Signal Processing Workshop, Spain, 2004-07-18 - 2004-07-21
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 261262
URI: https://eprints.soton.ac.uk/id/eprint/261262
ISBN: 0 7803 8545 4
PURE UUID: a98ff8a5-2674-4bca-9602-4c18389cae23
ORCID for L Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 26 Sep 2005
Last modified: 20 Jul 2019 01:26

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Contributors

Author: W Liu
Author: S Weiss
Author: L Hanzo ORCID iD

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