摘要
采用改进的分形模型来模拟实际的粗糙海面,应用矩量法研究了一维改进的分形海面及其上方矩形截面导体柱复合电磁散射特征,得到了复合散射系数随散射角的变化曲线,讨论了海面风速、矩形截面柱尺寸、矩形截面柱中心高度以及入射波频率对复合散射系数的影响。结果表明海面风速对复合散射系数的影响明显,而矩形截面柱尺寸、矩形截面柱中心高度、入射波频率对复合散射系数的影响较小。
An improved fractal model is proposed for describing the practical rough sea surface.The composite electromagnetic scattering from the PEC rectangular cross-section colum nabove 1D improved fractal sea surface is studied by the method of moment.The curves of the composite scattering coefficient changing with the scattering angle are obtained by the numerical calculation.The influence of the wind speed,the size of the rectangularcr oss-section column,the center height of the rectangular cross-section column,the frequency of the incident wave on the scattering coefficient is discussed.The results indicate that the wind speed has great influence on the composite scattering coefficient while the less influence is from the other factors,such as the size of the rectangular cross-section column,the center height of the rectangular cross-section column and the frequency of incident wave.
出处
《电子测量技术》
2013年第2期55-58,共4页
Electronic Measurement Technology
基金
延安市科技计划(2010kg-07)
榆林市科技计划(Gj11-01)资助项目
关键词
复合电磁散射
矩量法
改进的分形海面
矩形截面柱
composite electromagnetic scattering
method of moment
improved fractal sea surface
rectangularcross-section column
