Time-Domain Microwave Breast Screening Technique with Reconstructing Cole-Cole Model Parameters

doi:10.19596/j.cnki.1001-246x.7638

Abstract

Abstract: A novel time-domain technique for microwave tomography imaging is proposed. In the methodology three main difficulties, nonlinearity and ill-posedness of microwave imaging problem, and dispersion characteristics of breast tissues, are effectively circumvented by nonlinear optimization method, regularization technique, and introduction of a Cole-Cole model, respectively. It is preliminarily confirmed by a two-dimensional numerical example in which noise is considered. It shows that the inversion technique is feasible to detect small breast tumors. It is easy to find shallow tumors and accuracy in estimating static conductivity is best.

Key words: Cole-Cole model, time domain, microwave tomography imaging, breast screening

CLC Number:

LIU Guangdong, YU Guangqun. Time-Domain Microwave Breast Screening Technique with Reconstructing Cole-Cole Model Parameters[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2018, 35(3): 313-320.

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