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Multiple-input multiple-output radar for tissue classification in ultra-wideband breast imaging

Lookup NU author(s): Dr Yifan Chen

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Abstract

This paper studies the problem of applying multiple-input multiple-output (MIMO) radar techniques for lesion classification in ultrawideband (UWB) breast imaging. Ongoing work on this topic has suggested that benign and malignant masses, which usually possess remarkable architectural differences, could be distinguished by exploiting their morphology-dependent UWB microwave backscatter. We have previously approached this problem by deriving the complex natural resonances of the late-time target response, where the damping factors vary with the border profiles of anomalies. In this paper, we investigate the potential advantage of MIMO radar to enhance the resonance scattering phenomenon in breast tissue discrimination. MIMO radar can choose freely the probing signals transmitted via its antennas to exploit the independence between signals at the array elements, thereby enhancing the performance of target classification. Based on the observed damping factors and the receiver operating characteristics at different classifiers, which correspond to various diversity paths in the MIMO radar system, two data-fusion rules are proposed for robust lesion differentiation. Finally, numerical examples are provided to demonstrate the efficacy of the proposed imaging technique.


Publication metadata

Author(s): Chen Y, Craddock IJ, Kosmas P, Ghavami M, Rapajic P

Publication type: Article

Publication status: Published

Journal: IEEE Journal on Selected Topics in Signal Processing

Year: 2010

Volume: 4

Issue: 1

Pages: 187-201

Print publication date: 19/01/2010

ISSN (print): 1932-4553

ISSN (electronic): 1941-0484

Publisher: IEEE

URL: http://dx.doi.org/10.1109/JSTSP.2009.2038975

DOI: 10.1109/JSTSP.2009.2038975


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