Coherent sub-space processing for time reversal microwave imaging

Hossain, MD; Mohan, AS

Coherent sub-space processing for time reversal microwave imaging

Hossain, MD

Mohan, AS

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Publication Type:: Conference Proceeding
Citation:: 2013 International Symposium on Electromagnetic Theory, EMTS 2013 - Proceedings, 2013, pp. 254 - 257
Issue Date:: 2013-09-04

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Field	Value	Language
dc.contributor.author	Hossain, MD https://orcid.org/0000-0002-8162-686X	en_US
dc.contributor.author	Mohan, AS https://orcid.org/0000-0002-4503-5851	en_US
dc.date.issued	2013-09-04	en_US
dc.identifier.citation	2013 International Symposium on Electromagnetic Theory, EMTS 2013 - Proceedings, 2013, pp. 254 - 257	en_US
dc.identifier.isbn	9784885522772	en_US
dc.identifier.uri	http://hdl.handle.net/10453/33206
dc.identifier.uri	http://hdl.handle.net/10453/26729
dc.description.abstract	We consider electromagnetic inverse scattering using time reversal for microwave imaging for early stage breast cancer detection. Assuming that the malignant tissue inside the breast to be the strongest scatterer, we localize it by employing subspace based time reversal techniques viz., decomposition of the time reversal operator (DORT) and time reversal MUSIC. In denser breasts, the fibroglandular tissue clutter dominates the back scattered signals at the receiver. Also, the received scattered field becomes highly correlated thereby significantly affecting the performance of subspace based time reversal algorithms. To alleviate this, we employ coherent signal subspace transformation to obtain a coherently focussed time reversal operator (TRO). We test the performance of proposed method using MRI derived realistic numerical breast phantom of a moderately dense breast. © 2013 IEICE.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP0773234
dc.relation.ispartof	2013 International Symposium on Electromagnetic Theory, EMTS 2013 - Proceedings	en_US
dc.title	Coherent sub-space processing for time reversal microwave imaging	en_US
dc.type	Conference Proceeding
utslib.for	090399 Biomedical Engineering not elsewhere classified	en_US
dc.location.activity	Hiroshima, Japan	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/DVC (Teaching and Learning)
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Biomedical Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CHT - Health Technologies
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US

Abstract:

We consider electromagnetic inverse scattering using time reversal for microwave imaging for early stage breast cancer detection. Assuming that the malignant tissue inside the breast to be the strongest scatterer, we localize it by employing subspace based time reversal techniques viz., decomposition of the time reversal operator (DORT) and time reversal MUSIC. In denser breasts, the fibroglandular tissue clutter dominates the back scattered signals at the receiver. Also, the received scattered field becomes highly correlated thereby significantly affecting the performance of subspace based time reversal algorithms. To alleviate this, we employ coherent signal subspace transformation to obtain a coherently focussed time reversal operator (TRO). We test the performance of proposed method using MRI derived realistic numerical breast phantom of a moderately dense breast. © 2013 IEICE.

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