Improved Delay-and-Sum Beamforming Algorithm for Breast Cancer Detection

Improved Delay-and-Sum Beamforming Algorithm for Breast Cancer Detection

We have evaluated a modified delay-and-sum (DAS) beamforming algorithm for breast cancer detection with a microwave radar-based system. The improved DAS algorithm uses an additional weight factor calculated at each focal point to improve image quality. These weights essentially represent the quality...

Full description

Bibliographic Details
Main Authors: M. Klemm, I. J. Craddock, J. A. Leendertz, A. Preece, R. Benjamin
Format: Article
Language:English
Published: Hindawi Limited 2008-01-01
Series:International Journal of Antennas and Propagation
Online Access:http://dx.doi.org/10.1155/2008/761402
id doaj-223c62b45caa43679505775429522dd9
record_format Article
spelling doaj-223c62b45caa43679505775429522dd92020-11-24T23:46:43ZengHindawi LimitedInternational Journal of Antennas and Propagation1687-58691687-58772008-01-01200810.1155/2008/761402761402Improved Delay-and-Sum Beamforming Algorithm for Breast Cancer DetectionM. Klemm0I. J. Craddock1J. A. Leendertz2A. Preece3R. Benjamin4Centre for Communications Research, Department of Electrical and Electronic Engineering, University of Bristol, Woodland Road, Bristol BS8 1UB, UKCentre for Communications Research, Department of Electrical and Electronic Engineering, University of Bristol, Woodland Road, Bristol BS8 1UB, UKCentre for Communications Research, Department of Electrical and Electronic Engineering, University of Bristol, Woodland Road, Bristol BS8 1UB, UKCentre for Communications Research, Department of Electrical and Electronic Engineering, University of Bristol, Woodland Road, Bristol BS8 1UB, UKCentre for Communications Research, Department of Electrical and Electronic Engineering, University of Bristol, Woodland Road, Bristol BS8 1UB, UKWe have evaluated a modified delay-and-sum (DAS) beamforming algorithm for breast cancer detection with a microwave radar-based system. The improved DAS algorithm uses an additional weight factor calculated at each focal point to improve image quality. These weights essentially represent the quality of preprocessing and coherent radar operation. Using a multistatic UWB radar system based on a hemispherical antenna array, we present experimental detection of 7 mm and 10 mm phantom tumours. We show that the new proposed DAS algorithm improves signal-to-clutter ratio in focused images by 2.65 dB for 10 mm tumour, and by 4.4 dB for 7 mm tumour.http://dx.doi.org/10.1155/2008/761402
collection DOAJ
language English
format Article
sources DOAJ
author M. Klemm
I. J. Craddock
J. A. Leendertz
A. Preece
R. Benjamin
spellingShingle M. Klemm
I. J. Craddock
J. A. Leendertz
A. Preece
R. Benjamin
Improved Delay-and-Sum Beamforming Algorithm for Breast Cancer Detection
International Journal of Antennas and Propagation
author_facet M. Klemm
I. J. Craddock
J. A. Leendertz
A. Preece
R. Benjamin
author_sort M. Klemm
title Improved Delay-and-Sum Beamforming Algorithm for Breast Cancer Detection
title_short Improved Delay-and-Sum Beamforming Algorithm for Breast Cancer Detection
title_full Improved Delay-and-Sum Beamforming Algorithm for Breast Cancer Detection
title_fullStr Improved Delay-and-Sum Beamforming Algorithm for Breast Cancer Detection
title_full_unstemmed Improved Delay-and-Sum Beamforming Algorithm for Breast Cancer Detection
title_sort improved delay-and-sum beamforming algorithm for breast cancer detection
publisher Hindawi Limited
series International Journal of Antennas and Propagation
issn 1687-5869
1687-5877
publishDate 2008-01-01
description We have evaluated a modified delay-and-sum (DAS) beamforming algorithm for breast cancer detection with a microwave radar-based system. The improved DAS algorithm uses an additional weight factor calculated at each focal point to improve image quality. These weights essentially represent the quality of preprocessing and coherent radar operation. Using a multistatic UWB radar system based on a hemispherical antenna array, we present experimental detection of 7 mm and 10 mm phantom tumours. We show that the new proposed DAS algorithm improves signal-to-clutter ratio in focused images by 2.65 dB for 10 mm tumour, and by 4.4 dB for 7 mm tumour.
url http://dx.doi.org/10.1155/2008/761402
work_keys_str_mv AT mklemm improveddelayandsumbeamformingalgorithmforbreastcancerdetection
AT ijcraddock improveddelayandsumbeamformingalgorithmforbreastcancerdetection
AT jaleendertz improveddelayandsumbeamformingalgorithmforbreastcancerdetection
AT apreece improveddelayandsumbeamformingalgorithmforbreastcancerdetection
AT rbenjamin improveddelayandsumbeamformingalgorithmforbreastcancerdetection
_version_ 1725492633364594688

Similar Items