摘要
基于粒子排列成行的随机介质模型,给出了浮尘中微波、毫米波传播的差分衰减和差分相移计算公式。并且计算了不同频率圆极化状态的微波、毫米波在浮尘中传播的交叉去极化分辨率 XPD 大小。结果表明,对于低能见度浮尘或沙尘暴来说,交叉去极化效应是比较严重的。
Based on the model of particle alignment,expressions for differential attenuation and differential phase shift constants for a medium suspending dust particles are derived.Cross—polarization discrimination XPD is calculated.The results show that when visibility of the air suspending dust particles is bad(v_b<100m),crosspolarization offect appears to be serious on circularly polarized microwave,millimetric wave links.
出处
《电波科学学报》
EI
CSCD
1990年第2期44-50,共7页
Chinese Journal of Radio Science
