基于电磁波链路损耗模型的空间隔离度算法研究  

Research on Spatial Isolation Algorithm Based on the Electromagnetic Wave Link Loss Model

作　　者：张垚 薛杨 胡红军 郭璞 李小龙[1,2] ZHANG Yao;XUE Yang;HU Hongjun;GUO Pu;LI Xiaolong(Xi’an Satellite Control Center,Xi’an 710043,China;State Key Laboratory of Astronautic Dynamics,Xi’an 710043,China)

机构地区：[1]中国西安卫星测控中心,陕西西安710043 [2]宇航动力学国家重点实验室,陕西西安710043

出　　处：《无线电工程》2019年第2期150-154,共5页Radio Engineering

基　　金："十三五"航天领域预研专用技术基金资助项目(30507010501)

摘　　要：收发空间隔离度是反映电磁波在地表及大气传播的重要指标,对信号链路损耗计算、地面测量系统性能设计等方面产生较大影响。通过分析电磁波在地面绕射及大气散射机理和空间隔离度计算方法,构建电磁波传播损耗模型,利用该数学模型对空间隔离度进行仿真,并通过空间隔离度实地测试检验了算法的正确性和有效性,为工程建设和站址勘选提供依据。The spatial isolation between transmitter and receiver is an important index that reflects the electromagnetic wave propagation on the surface and in the atmosphere.It plays a decisive role in the signal link loss calculation and the performance design of ground measurement system.Based on the analysis of the electromagnetic wave diffraction on the ground and atmospheric scattering mechanism and the calculation method of spatial isolation,the model of diffraction and scattering loss of electromagnetic wave is established,and used to simulate spatial isolation.Compared with actual testing,the results verify the correctness and validity of the algorithm,which can provide technical support for engineering construction and site selection.

关 键 词：收发空间隔离度 绕射损耗 散射损耗 

分 类 号：V556.6[航空宇航科学与技术—人机与环境工程]