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APPLICATION OF GROUP THEORY FOR COMPUTATION REDUCTION IN MICROWAVE IMAGING OF HUMAN BREAST MODEL AT 500 MHZ

By H. N. Patel and D. K. Ghodgaonkar

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Abstract:
In microwave imaging, accuracy of breast cancer detection depends on complex permittivity profile reconstruction in breast. Inverse scattering problem is solved to reconstruct complex permittivity profile of breast. In this paper, computation time to solve inverse scattering problem is reduced by exploiting symmetry present in breast models using group theory. Forward problem is solved using method of moments. Levenberg-Marquardt algorithm is used to solve inverse scattering problem with and without group theory. Results show that computation time is reduced considerably by exploiting symmetry present in breast models using group theory. At higher SNR, error in complex permittivity reconstruction with group theory is approximately same as error without group theory.

Citation:
H. N. Patel and D. K. Ghodgaonkar, "Application of Group Theory for Computation Reduction in Microwave Imaging of Human Breast Model at 500 MHz ," Progress In Electromagnetics Research M, Vol. 51, 165-173, 2016.
doi:10.2528/PIERM16080502

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