Efficient Monostatic RCS Calculation for Scattering Center Extraction

Scattering center is one of the key contents in the study on electromagnetic scattering of radar targets, while it is based on the rapid calculation of radar cross section (RCS). Characteristic mode (CM) method expands the surface current on the target with a set of CMs as the global basis functions...

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Bibliographic Details
Published in2021 Photonics & Electromagnetics Research Symposium (PIERS) pp. 368 - 372
Main Authors Zhu, Chenxi, Dang, Xunwang, Yan, Hua, Feng, Xuejian, Huo, Chaoying, Ying, Hongcheng
Format Conference Proceeding
LanguageEnglish
Published IEEE 21.11.2021
Subjects
Approximation methods
Broadband communication
Electromagnetics
Method of moments
Radar cross-sections
Radar scattering
Surface treatment
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Summary:Scattering center is one of the key contents in the study on electromagnetic scattering of radar targets, while it is based on the rapid calculation of radar cross section (RCS). Characteristic mode (CM) method expands the surface current on the target with a set of CMs as the global basis functions. It can reduce the unknowns in the method of moments (MoM) and speed up the iteration process. Combining the broadband CM method and with the monostatic/bistatic approximation method, the monostatic RCS can be calculated approximately by the bistatic RCS in the vicinity of incident angle, which decreases the angle to be simulated in the angle sweeping process. Thus, the time consumption of the iterations and angle sweeping process can be greatly reduced. At the same time, the scattering center can also be extracted accurately and quickly. Numerical results are presented to demonstrate the accuracy and efficiency of this method.
ISSN:2694-5053
DOI:10.1109/PIERS53385.2021.9694803