摘要
采用一维高斯型粗糙面模拟实际的沙壤土面,运用矩量法研究了其在锥形波入射下的电磁散射,借助数值计算讨论了制约电磁散射系数σ的一些因素(高度起伏均方根、相关长度、土壤湿度、入射波频率),并总结出其随各因素变化的具体规律.
One-dimensional Gaussian rough surface is adopted to simulate the actual sandy loam surface. Theelectromagnetic scattering with tapered wave incidence is studied by using method of moments. Some of factorsrestricting electromagnetic scattering coefficients,such as the root mean square,the correlation length,the soil＇smoisture,the incident wave＇s frequency,are discussed by numerical calculating. At the same time,the specific lawsof its changes with the said factors are summed.
出处
《河南科学》
2014年第10期1966-1971,共6页
Henan Science
基金
陕西省自然科学基金项目(2012JM8012)
延安市科技计划项目(2012kg-10)
关键词
高斯粗糙面
电磁散射
矩量法
散射系数
Gaussian rough surfaces
electromagnetic scattering
method of moments
scattering coefficient
