X频段星地数据传输链路降雨及沙尘衰减特性研究  

Research on Rain and Sand Attenuation Characteristics of X-band Data Transmission Link

作　　者：王玉冉 咸永强 高晓宇[2] 纪航 WANG Yuran;XIAN Yongqiang;GAO Xiaoyu;JI Hang(Xinjiang University of Science&Technology,Korla 841000,China;Unit 63612 of PLA,Dunhuang 736200,China;Unit 63610 of PLA,Korla 841000,China)

机构地区：[1]新疆科技学院,新疆库尔勒841000 [2]中国人民解放军63612部队,甘肃敦煌736200 [3]中国人民解放军63610部队,新疆库尔勒841000

出　　处：《智能物联技术》2023年第4期52-56,共5页Technology of Io T& AI

摘　　要：降雨衰减(雨衰)和沙尘衰减是引起高频卫星通信链路损耗的重要因素。本文基于国际电信联盟ITU-R模型,利用MATLAB仿真对全国十个典型站点降雨衰减量进行了计算,对在99.99%可用度情况下的降雨衰减进行了分析,计算得到X频段星地数据传输链路降雨衰减特征;利用Goldhirsh模型计算了地面站不同仰角下衰减量和能见度的关系。本文研究可以为卫星地面站开展数据传输、测量控制等工作提供参考。Rain attenuation and sand attenuation are the main factor affecting the link loss of high frequency satellite communication.The value of rain attenuation over ten typical satellite ground stations were calculated based on ITU-R model with MATLAB in this paper.An analysis was conducted on the rainfall attenuation of typical stations under 99.99 re-liability and the rainfall attenuation characteristics of the X-band data transmission link were calculated.The relationship between attenuation and visibility at different elevation angle was analyzed using the Goldhirsh model.This study can pro-vide reference for satellite data reception system of satellite ground stations to carry out data transmission measurement con-trol and other work.

关 键 词：X频段 降雨衰减 星地链路 沙尘 ITU-R Goldirshmodel 

分 类 号：TN927[电子电信—通信与信息系统]