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基于文氏改进功率谱和Donelan方向分布的实验结论,结合经典的Monte Carlo法提出了一种适用于不同水深、不同风浪成长阶段的二维粗糙海面模型.在经典的双尺度法计算海面后向散射的基础上,结合小斜率近似法的仿真结果,对电磁散射计算方法进行改进.通过与典型海杂波均值散射系数GIT模型的拟合结果进行对比,验证了文氏改进谱在中国近海海面模拟的适应性与改进后电磁散射计算方法的有效性.
Based on the experimental results of Wen’s improved power spectrum and Donelan direction distribution, a two-dimensional rough sea model suitable for different water depths and different wind-wave growth stages is proposed based on the classical Monte Carlo method. In the classical two-scale method, Based on the simulation result of small slope approximation method, the calculation method of electromagnetic scattering is improved.Comparing with the fitting result of GIT model of typical sea clutter, Simulation Adaptability and the Effectiveness of the Improved Calculation Method of Electromagnetic Scattering.