降雨衰减对K频段卫星通信系统的影响分析OA
Analysis of rain attenuation effects on K-band satellite communication systems
降雨衰减是引起K频段高频电磁波星地链路传输损耗的重要因素,基于国际电信联盟(ITU)推荐的经典模型ITU-R P.618-11,对K频段星地链路的降雨衰减进行预测分析.利用软件编程,针对中国境内的6个典型地区,计算了静止卫星轨道位置在100°E和120°E、频率为20GHz和25GHz时的降雨衰减值.分析了我国东部地区和西部内陆地区的降雨衰减差异,归纳总结了卫星通信系统的抗雨衰对策,研究结果为卫星通信地面站在相关地区的数据传输、测量控制等工作提供了理论依据.
Rain attenuation significantly contributes to the transmission loss of high-frequency electromagnetic waves in K-band sat-ellite-to-ground links.Based on the ITU-R P.618-11 model,this paper predicts and analyzes rain attenuation in K-band satellite com-munication links.Using programming,numerical calculations of rain attenuation were conducted for six typical regions in China,consider-ing geostationary satellite orbital positions at 100°E and 120°E,and frequencies of 20 GHz and 25 GHz.The differences in rainfall attenu-ation between the eastern region and the western inland region of China were analyzed.Give a summary of rain attenuation countermea-sures in satellite communication systems.The results provide a theoretical basis for satellite communication ground stations in these re-gions to optimize data transmission and measurement control.
李双丽;咸永帅;王玉冉
北京大地宏图勘测科技有限公司,北京 100020正孚信安(北京)技术有限公司,北京 102600新疆科技学院,新疆库尔勒 841000
信息技术与安全科学
K频段星地链路降雨衰减ITU-R模型卫星通信
K-bandSatellite-to-ground linkRain attenuationITU-R modelSatellite communication
《通信与信息技术》 2026 (2)
32-35,4
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