The University of Southampton
University of Southampton Institutional Repository

Bandwidth selective filter for the pre-excision of narrowband interference in broadband beamformers

Bandwidth selective filter for the pre-excision of narrowband interference in broadband beamformers
Bandwidth selective filter for the pre-excision of narrowband interference in broadband beamformers
A novel frequency domain excision filter for use in front of broadband adaptive beamformer systems is presented. The proposed frequency domain excision filter uses image processing techniques to determine the excision threshold such that only narrowband interference is removed from the received signal. By preexcising the received signal of narrowband interference the adaptive beamformer only has to remove partialband or broadband interferers. This frees up degrees of freedom (DoF) in the adaptive beamformer in mixed interference environments allowing for a greater interference suppression capability. The proposed pre-excision system is simulated using a constrained space-time adaptive processor as well as a constrained suboptimal space-frequency adaptive processor. It is shown that when pre-excision is used in front of a beamformer the total number of interference sources that can be simultaneously rejected is increased as long as the beamformer's DoF are exceeded by narrowband interference.
201-212
Tisdale, N
6dddec9c-3459-40e8-9159-e3d20a818c40
Kazmierski, TJ
a97d7958-40c3-413f-924d-84545216092a
Brooks, D
4e6fdec5-14bb-4e8e-805f-ef09976328c4
Tisdale, N
6dddec9c-3459-40e8-9159-e3d20a818c40
Kazmierski, TJ
a97d7958-40c3-413f-924d-84545216092a
Brooks, D
4e6fdec5-14bb-4e8e-805f-ef09976328c4

Tisdale, N, Kazmierski, TJ and Brooks, D (2010) Bandwidth selective filter for the pre-excision of narrowband interference in broadband beamformers. IET Communications, 4, 201-212.

Record type: Article

Abstract

A novel frequency domain excision filter for use in front of broadband adaptive beamformer systems is presented. The proposed frequency domain excision filter uses image processing techniques to determine the excision threshold such that only narrowband interference is removed from the received signal. By preexcising the received signal of narrowband interference the adaptive beamformer only has to remove partialband or broadband interferers. This frees up degrees of freedom (DoF) in the adaptive beamformer in mixed interference environments allowing for a greater interference suppression capability. The proposed pre-excision system is simulated using a constrained space-time adaptive processor as well as a constrained suboptimal space-frequency adaptive processor. It is shown that when pre-excision is used in front of a beamformer the total number of interference sources that can be simultaneously rejected is increased as long as the beamformer's DoF are exceeded by narrowband interference.

Full text not available from this repository.

More information

Published date: 2010
Additional Information: Imported from ISI Web of Science
Organisations: EEE

Identifiers

Local EPrints ID: 270732
URI: https://eprints.soton.ac.uk/id/eprint/270732
PURE UUID: f43724a1-945d-48db-9ca7-41e842201564

Catalogue record

Date deposited: 21 Apr 2010 07:45
Last modified: 20 Jun 2019 16:31

Export record

Contributors

Author: N Tisdale
Author: TJ Kazmierski
Author: D Brooks

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×