摘要
研究了雨介质中导体目标对电磁波的散射特性;当入射波沿垂直方向极化时,得出 了毫米波段散射场的表达式,导出了目标的微分散射截面,结果表明:微分散射截面总体上随雨 强的增加和频率的升高而减小,具有后向散射增强效应;共极化微分散射截面与交叉极化微分散 射截面的比值随降雨率的增大而增大。
The scattering characteristic of electromagnetic wave of a conductor target in rain is investigated. The formulation of scattering wave and differential scattering section are presented in millimeter wave band. Computations show: the differential scattering section decreases versus the increase of rain rate and wave frequency and has backward scattering enhancement. The ratio of co-polarization differential scattering section to cross-polarization differential scattering section increases versus the increase of rain rate.
出处
《咸阳师范学院学报》
2002年第6期15-18,共4页
Journal of Xianyang Normal University
基金
咸阳师范学院专项科研基金资助项目
