Implementation a hybrid MAS and SPA algorithm for broadband electromagnetic induction problems

The computational complexity/efficiency of the method of auxiliary sources (MAS) is significantly reduced at high frequency (high induction number >40) for electromagnetic induction problems. At the same time the small penetration-depth approximation (SPA) is very accurate at high frequency/induc...

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Bibliographic Details
Main Authors: Shubitidze, F., O'Neill, K., Shamatava, I., Sun, K., Paulsen, K.D.
Format: Conference Proceeding
Language:English
Subjects:
Applied sciences
Computational complexity
Computational efficiency
Conductivity
Diffraction, scattering, reflection
Electromagnetic induction
Electromagnetic scattering
Equations
Exact sciences and technology
Frequency
Magnetic fields
Radiocommunications
Radiowave propagation
Robust stability
Sun
Telecommunications
Telecommunications and information theory
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Summary:The computational complexity/efficiency of the method of auxiliary sources (MAS) is significantly reduced at high frequency (high induction number >40) for electromagnetic induction problems. At the same time the small penetration-depth approximation (SPA) is very accurate at high frequency/induction numbers. A hybrid algorithm, combining the MAS with SPA, is efficiently implemented. Numerical experiments are performed for a highly conducting and permeable sphere and a prolate spheroid under a time varying primary magnetic field. Numerical experiments demonstrate that the proposed method is able to produce very accurate results with low computational requirements.
DOI:10.1109/DIPED.2002.1049169