| Scattering Model for Electrical-Large Target Employing MLFMA and Radar Imaging Formation |
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Xia Wu, Yaqiu Jin |
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Key Laboratory of Wave Scattering and Remote Sensing Information (Ministry of Education), Fudan University |
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| Abstract |
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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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