INVERSE SCATTERING OF THREE-DIMENSIONAL PEC OBJECTS USING THE LEVEL-SET METHOD | Zendy

Mohammad Reza Hajihashemi | Zendy; Magda ElShenawee | Zendy

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INVERSE SCATTERING OF THREE-DIMENSIONAL PEC OBJECTS USING THE LEVEL-SET METHOD

Author(s) -

Mohammad Reza Hajihashemi,

Magda ElShenawee

Publication year - 2011

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier11012304

Subject(s) - solver , moment (physics) , inverse problem , algorithm , inversion (geology) , inverse , mathematics , marching cubes , computer science , integral equation , mathematical optimization , mathematical analysis , geometry , artificial intelligence , physics , classical mechanics , paleontology , structural basin , visualization , biology

A 3D shape reconstruction algorithm for multiple PEC objects immersed in air is presented. The Hamilton-Jacobi PDE is solved in the entire computational domain with employing the marching cubes method to retrieve the unknown objects. The method of moment surface integral equation is used as the forward solver. An appropriate form of the deformation velocity, based on the forward and adjoint flelds, is implemented to minimize the mismatch between the measurements and simulated scattered flelds from the evolving objects. The inversion algorithm demonstrated good shape reconstruction results even when using limited view data or noisy corrupted data with SNR of 5dB.

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