粗糙海面与上方多目标瞬态电磁散射混合算法

doi:10.3969/j.issn.1001-2400.2018.05.010

Abstract

Abstract:

In order to improve the calculation efficiency of the time-domain algorithm, a time-domain hybrid algorithm combining the time-domain integral equation (TDIE) with the time-domain Kirchhoff approximation (TDKA) is proposed to solve composite electromagnetic scattering from multiple targets above the one-dimensional conducting rough sea surface. In the hybrid method, the scattering of every target and the coupling scattering between them are accurately calculated by the TDIE method, and transient scattering from the sea surface can be estimated very well by the TDKA method. Taking into account the interactions between TDKA region and TDIE region, a time-domain matrix equation is given and used to solve the transient composite electromagnetic scattering from multiple targets above the rough sea surface. Compared with the conventional TDIE method, the hybrid method has a high computational efficiency and good calculation accuracy.

Key words: electromagnetic scattering, rough surface, multiple targets, hybrid method, time-domain integral equation

WANG Qiang;Guo Lixin;LIU Zhongyu. Hybrid method for transient electromagnetic scattering from multiple targets above the rough sea surface[J].Journal of Xidian University, 2018, 45(5): 57-63.

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Hybrid method for transient electromagnetic scattering from multiple targets above the rough sea surface

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