卫星通信链路传输参数计算的均衡逼近方法  

Equalization Approximation Method of Satellite Communication Link Transmission Parameter Calculation

作　　者：谷俊博 周东方[1] 邓海林[1] 彭强 张德伟[1] GU Junbo;ZHOU Dongfang;DENG Hailin;PENG Qiang;ZHANG Dewei(Information Engineering University, Zhengzhou 450001, China;Unit 32076, Chengdu 610041, China)

机构地区：[1]信息工程大学,河南郑州450001 [2]32076部队,四川成都610041

出　　处：《信息工程大学学报》2022年第1期1-8,共8页Journal of Information Engineering University

基　　金：国家自然科学基金资助项目(61201056,61271104)。

摘　　要：卫星通信需要合理设计卫星传输链路,以确保卫星系统的稳定运行。鉴于云雨雪雾等气象因素会对工作在C,Ku和Ka等较高频段的卫星通信产生较大影响,且不易直接测量,提出一种基于均衡逼近的卫星链路传输损耗计算方法。在目标点的气象条件无法直接测量的情况下,该方法可通过目标点附近的部分卫星地面站形成的等效计算网络准确计算目标点的卫星通信链路传输损耗。最后,在实测数据库基础上对均衡逼近方法与ITU-R模型方法进行比较,验证了该方法的准确性和有效性。Satellite communication requires a reasonable design of satellite transmission links to ensure the stable operation of the satellite system.In view of the fact that meteorological factors such as cloud,rain,snow and fog will have a greater impact on satellite communications operating in higher frequency bands such as C,Ku and Ka,and it is not easy to measure directly,a calculation method of satellite link transmission loss based on equalization approximation is proposed.When the meteorological conditions of the target point cannot be directly measured,this method can accurately calculate the satellite communication link transmission loss of the target point through the equivalent calculation network formed by some satellite ground stations near the target point.Finally,the equalization approximation method based on the measured database is compared with the ITU-R model method,which verifies the accuracy and effectiveness of the method.

关 键 词：卫星通信链路 传输损耗 均衡逼近 大气吸收损耗 雨衰减 云衰减 雾衰减 

分 类 号：TN927[电子电信—通信与信息系统]