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J Electromagn Eng Sci > Volume 10(3); 2010 > Article
Journal of the Korean Institute of Electromagnetic and Science 2010;10(3):166-170.
DOI: https://doi.org/10.5515/JKIEES.2010.10.3.166   
Scattering Model for Electrical-Large Target Employing MLFMA and Radar Imaging Formation
Xia Wu, Yaqiu Jin
Key Laboratory of Wave Scattering and Remote Sensing Information (Ministry of Education), Fudan University
Abstract
To numerically calculate electromagnetic scattering from the electrical-large three-dimensional(3D) objects, the high-frequency approaches have been usually applied, but the accuracy and feasibility of these geometrical and physical optics(GO-PO) approaches, to some extent, are remained to be improved. In this paper, a new framework is developed for calculation of the near-field scattering field of an electrical-large 3D target by using a multilevel fast multipole algorithm(MLFMA) and generation of radar images by using a fast back-projection(FBP) algorithm. The MPI(Message Passing Interface) parallel computing is carried out to multiply the calculation efficiency greatly. Finally, a simple example of perfectly electrical conducting(PEC) patch and a canonical case of Fighting Falcon F-16 are presented.
Key words: Numerical Calculation, Scattering, Target, MLFMA
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