The electromagnetic scattering characteristics of foam in Marine environment are studied in this paper. The Elfouhaily sea spectrum model is established, and the dielectric constants of seawater/ocean foam are calculated based on the double Debye dielectric constant model, furthermore, the formula relation between them is given. As an important factor affecting ocean electromagnetic scattering, the thickness of foam is proportional to the wind speed above the sea surface. In this paper, the SMCG method based on the surface current equation is mainly used to calculate the electromagnetic scattering coefficient of the environment, and the correctness of the SMCG algorithm is verified by comparing the calculated results with the actual measured data. Based on the computer simulation, the influence of the existence of ocean foam on the environmental scattering is discussed, and the Marine electromagnetic scattering coefficients under different wind speeds, different scrape angles and different radar bands are calculated. Through the analysis of the calculation results, the influences of wind speed, grazing angle and frequency on the electromagnetic scattering characteristics of the Marine environment containing foam are studied, and the general variation rule is obtained: the intensity of electromagnetic scattering increases with the increase of wind speed, the decrease of incident Angle and the increase of frequency. The results of this paper can be used to guide ocean navigation and fishery, and have reference significance in the military field.

中文翻译：

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基于SMCG的泡沫海电磁散射研究

本文研究了泡沫在海洋环境中的电磁散射特性。建立了Elfouhaily海谱模型，基于双德拜介电常数模型计算了海水/海洋泡沫的介电常数，并给出了它们之间的公式关系。作为影响海洋电磁散射的重要因素，泡沫的厚度与海面以上的风速成正比。本文主要采用基于表面电流方程的SMCG方法计算环境电磁散射系数，通过计算结果与实测数据的对比验证了SMCG算法的正确性。基于计算机模拟，讨论了海洋泡沫的存在对环境散射的影响，计算了不同风速、不同刮擦角和不同雷达波段下的海洋电磁散射系数。通过对计算结果的分析，研究了风速、掠射角和频率对含泡沫海洋环境电磁散射特性的影响，得到了一般的变化规律：电磁散射强度随着风速、入射角的减小和频率的增加。本文结果可用于指导远洋航行和渔业，在军事领域具有参考意义。计算了不同风速、不同刮擦角、不同雷达波段下的海洋电磁散射系数。通过对计算结果的分析，研究了风速、掠射角和频率对含泡沫海洋环境电磁散射特性的影响，得到了一般的变化规律：电磁散射强度随着风速、入射角的减小和频率的增加。本文结果可用于指导远洋航行和渔业，在军事领域具有参考意义。计算了不同风速、不同刮擦角、不同雷达波段下的海洋电磁散射系数。通过对计算结果的分析，研究了风速、掠射角和频率对含泡沫海洋环境电磁散射特性的影响，得到了一般的变化规律：电磁散射强度随着风速、入射角的减小和频率的增加。本文结果可用于指导远洋航行和渔业，在军事领域具有参考意义。研究了掠射角和频率对含泡沫海洋环境电磁散射特性的影响，得到了一般的变化规律：电磁散射强度随着风速的增加、入射角的减小和频率的增加而增加。本文结果可用于指导远洋航行和渔业，在军事领域具有参考意义。研究了掠射角和频率对含泡沫海洋环境电磁散射特性的影响，得到了一般的变化规律：电磁散射强度随着风速的增加、入射角的减小和频率的增加而增加。本文研究结果可用于指导远洋航行和渔业，在军事领域具有参考意义。