摘要
采用空间域合成法生成Alpha-stable分布的粗糙土壤表面,运用矩量法研究了在锥形入射波入射下粗糙表面与上方三角形截面柱体的复合电磁散射,数值计算了散射系数随散射角的变化关系,分析了稳定性系数、归一化尺度参数、互相关长度、入射波频率、土壤湿度、三角形截面柱边长、目标方位角和中心高度对散射系数的影响.
The composite electromagnetic scattering problem from the random rough surface with above target is studied by the method of moment.The spatial domain building method is used to generate rough soil surface of the alpha-stable distribution.The composite electromagnetic scattering problem from the rough surface with above triangular cross section column is studied under the tapered incident wave incident.The varying relationship of composite scattering coefficient with scattering angle is numerical calculated,and the influence of the stability coefficient,normalized scale parameter,cross-correlation length,the incident wave frequency,moisture of soil,geometric parameters,the azimuth angle and the center height of triangular cross section column on the composite scattering coefficient are analyzed.
作者
晁雪
任新成
田炜
CHAO Xue REN Xin-cheng TIAN Wei(School of Physics and Electronic Information, Yanran University,Yan＇an 716000,China)
出处
《云南师范大学学报（自然科学版）》
2017年第5期34-39,共6页
Journal of Yunnan Normal University:Natural Sciences Edition
基金
国家杰出青年科学基金资助项目(61225002)
国家自然科学基金资助项目(61379026)
陕西省自然科学基础研究计划资助项目(2014JM-6113)
陕西省高水平大学建设专项资金资助项目(2015SXTS02)
陕西省教育厅专项科研计划资助项目(15JK1829)
延安市科学技术研究发展计划资助项目(2014ZC-4)
延安大学2017年研究生教育创新基金资助项目(YCX201741)
关键词
电磁散射
矩量法
空间域合成法
Alpha-stable分布
三角形截面柱
Electromagnetic scattering
Method of moment
Spatial domain building method
Alphastable distribution
Triangular cross section column
