摘要
在深入分析微波视距通信信道特性及其传播机理的基础上,研究和提出了一种预测降雨引起的交叉极化效应的理论方法.其特点是综合考虑了差分衰减与差分相移对电波传播的影响,用同极化衰减(CPA)来表示交叉极化分辨率(XPD)的变化,并将预测结果与实验数据进行了比较,两者吻合较好.
Based on deeply analyzing the propeties and propagation mechanisms of microwave′s line of sight channal, this paper researches and proposes the theoretical method of predicting of rain induced cross polarizatoin effect,whose key points are to consider simultaneously the influence of differential attenuation and differential phase shift of the characteristic polarizations, and to characterize cross polarization discrimination with co polarization attenuation.Finally comparison with the measured values in experimental link, which showing good agreement between calculation and experiment.
出处
《烟台大学学报(自然科学与工程版)》
CAS
1999年第2期133-137,共5页
Journal of Yantai University(Natural Science and Engineering Edition)
基金
国防科技预研基金
关键词
双极化信道
微波通信
交叉极化效应
信道
预测
microwave propagation, dual polarization channel, cross polarization discrimination, co polarization attenuation