数值模拟低掠角入射海面与船目标的双站散射

为研究风驱粗糙海面上有船目标时的双站散射，提出了一种结合广义前后的迭代方法（GFBM）与谱加速算法（SAA）快速求解双站散射的Monte Carlo数值方法，计算了在TE、TM锥形波低掠角入射在一维Pierson-Moskowitz谱粗糙导体海面以及船目标存在时的双站散射，数值模拟了在低掠角入射条件下，包含多次散射传播的粗糙海面与目标的双站散射与极化、频率、视角和海面风速等参数的关系。

Numerical simulation of bistatic scattering fromrough sea surface with a ship presence at low grazing angle

In order to study bistatic scattering from the rough sea surface with presence of a ship target, especially at low grazing angle incidence, a hybrid approach of the generalized forward-backward method (GFBM) with spectral accelerate algorithm (SAA) with Monte Carlo method was developed. It was applied to numerical simulation of bistatic scattering from one-dimensional conducting sea surface with a ship presence under the TE and TM tapered wave incidence at low grazing angle (LGA). Numerical simulations of bistatic scattering at LGA show the functional dependence upon polarization, frequency, observation angle, sea surface wind speeds, ship location and other parameters.