摘要
针对现有蒸发波导条件下无线电系统性能研究过程中,忽略了蒸发波导水平非均匀特性影响,探讨了水平非均匀蒸发波导条件下的非互易性。利用马尔科夫过程模拟蒸发波导水平非均匀特性,结合抛物方程法计算电波传输损耗,仿真分析了雷达电磁参数对非互易性的影响。仿真结果表明:蒸发波导环境下电波传播的非互易性在波导水平非均匀时无法忽略,天线高度和电波频率对非互易性的影响较大。天线高度越高,电波频率越大,则非互易性越强。
For the problem of ignoring the horizontal inhomogeneous characteristics of evaporation duct in the research of radio system performance, the non-reciprocity of evaporation duct on the condition of horizontal inhomogeneous environment is discussed. The non-uniformity characteristics are studied by the simulation of Markov process. Radio transmission losses are calculated by parabolic equation method. The impacts of radar electromagnetic parameters on non-reciprocity are analyzed. Simulation results show that the radio non-reciprocity cannot be ignored in the horizontal inhomogeneous evaporation duct environment, the effects on non-reciprocity of antenna height and frequency are great. The larger the antenna height and the radio frequency, the stronger the non-reciprocity.
作者
郭凯凯
杜晓燕
GUO Kaikai;DU Xiaoyan(Institute of Information System Engineering,Information Engineering University,Zhengzhou Henan 450001,China)
出处
《太赫兹科学与电子信息学报》
北大核心
2018年第3期458-463,共6页
Journal of Terahertz Science and Electronic Information Technology
基金
国防重点实验室基金资助项目(9140C860303)
关键词
蒸发波导
水平非均匀
非互易性
抛物方程
evaporation duct
horizontal inhomogeneous
non-reciprocity
parabolic equation
