海上舰船在平面波照射下的半空间散射研究

The Scattering from Ships on Ocean-like Rough Surface Excited by a Plane Wave in Half-Space Model

本文研究了海面舰艇在平面波照射下的散射特性,为在该类问题中有效计入海面背景的影响,舍弃了以往文献中采用自由空间格林函数为内核求解的模型,而是利用介质半空间格林函数在海面建立电场积分方程,并采用GFB(广义前向后向法)算法结合MOM(矩量法)计算了海面以及海面舰船的感应电流分布以及双站雷达散射截面,对入射波角度、海面粗糙度、以及有船无船对海面电流分布及双站雷达散射截面的影响进行了讨论.

The half space green＇ s function is utilized to compute the scattering from ships on sea surface lighted by radar wave. The integral function is solved by Method of Moment （MoM） together with GFB algorithm. The surface current and bistatic RCS are computed as a function of the incidence angle, frequency and surface roughness and compared with the results in free space.