基于共频带传输的卫星通信系统功率控制仿真分析  

Simulation and Analysis of Power Control of Satellite Communication Systems Based on Common Frequency Transmission

作　　者：张金贵[1] 潘申富[1] 王静 韩明钥[1] ZHANG Jingui;PAN Shenfu;WANG Jing;HAN Mingyue(The 54th Research Institute of China Eectronics Tchnology Group Corporation,Shijiazhuang 050081,China;Hebei University of Science and Technology School of Information Science and Engineering,Shijiazhuang 050018,China)

机构地区：[1]中国电子科技集团公司第54研究所,石家庄050081 [2]河北科技大学信息科学与工程学院,石家庄050018

出　　处：《计算机测量与控制》2025年第4期109-114,共6页Computer Measurement &Control

摘　　要：对基于共频带传输的卫星通信系统的功率控制进行了研究,比较了不同种类的卫星、转发器、通信频段的特点,搭载Ku频段或C频段同步卫星的透明卫星转发器可以进行共频带通信;仿真分析了降雨对系统上下行链路的影响,天线口径越大,受下行雨衰影响越小;分析了传统功率控制方法不适用于基于共频带传输卫星通信系统;通过链路计算及推导,设计了通过控制目标用户上行链路信噪比的方法,限制目标用户信号占用卫星的最大功率;系统链路建立后,利用闭环功率控制,补偿上下行链路雨衰;并对功率控制方法进行了仿真分析。To address the characteristics of different types of satellites,transponders,communication frequency bands,research on the power control of satellite communication system base on common frequency transmission is carried out.The transparent satellite transponder equiped with Ku band and C band synchronous satellite can achieve co-band communication,and the influence of rainfull on the system's up link and down link is simulated and analyzed.The larger antenna aperture,the less affected it is by downlink rain attention,and traditional power control methods are not suitable for common frequency band transmission satellite systems;Through link calculation and derivation,a method for controlling the signal-to-noise ratio of the target user's uplink and downlink is designed,limiting the occupancy of satellite maximum power for target user's signals;After the system link is built,closed-loop power control is used to compensate rain attenuation in uplink and downlink and simulate and analyze the power control method.

关 键 词：共频带传输 功率控制 雨衰 直接序列扩频 卫星通信 目标用户 

分 类 号：TN391[电子电信—物理电子学]