摘要
针对粗糙表面散射实验中的后向散射增强现象,采用锥形波束入射的矩量法定量计算了分形粗糙表面的后向散射增强效应,研究了波形参数和表面尺寸的匹配问题,分析了不同入射角下散射增强的角宽度,比较了不同分维数和表面模型下散射增强的幅值。数值计算结果证明了该算法的有效性。
To investigate the backscattering enhancement effect of fractal rough surface, the method of moment associated with the tapering incident wave is adopted. The matching problem of the tapering parameter and the fraetal rough surface length with different incident angles is studied, The angular width of backscattering enhancement and the amplitudes of enhancement under various fractal dimensional numbers and rough surface models are analyzed by using this method. The results show that this method is valid.
出处
《空军工程大学学报（自然科学版）》
CSCD
北大核心
2006年第3期37-40,共4页
Journal of Air Force Engineering University(Natural Science Edition)
基金
空军工程大学学术(联合)基金资助项目(KGD-XL02-2004-02)
关键词
分形粗糙表面
后向散射增强
矩量法
角宽度
fractal rough surface
backscattering enhancement
method of moment ： angular width
