| 摘要: |
| 为满足高动态卫星接收机设计仿真及测试需求，以高机动飞行器典型运动模型为参考，通过合理近似与简化，推导出高动态卫星信道多普勒频偏变化理论模型。仿真结果表明，理论模型的多普勒频偏计算误差小于6，适合工程设计应用。在此基础上，进一步分析了高动态卫星通信信号载波同步关键技术，并提出了解决方案建议。 |
| 关键词: 卫星移动信道 高动态卫星通信链路 多普勒频偏 载波同步 |
| DOI： |
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| 基金项目: |
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| Doppler Frequency shift characteristics analysis of high dynamic satellite communication link |
| HUANG Aijun,DAI Hong |
| (Southwest China Institute of Electronic Technology，Chengdu 610036，China;Regional Aviation Military Representation Office of Army Equipment Department in Chengdu,Chengdu 610036，China) |
| Abstract: |
| To meet the demands of simulation and test for high dynamic satellite receiver designing,through proper simplification,a theoretical Doppler frequency shift model for high dynamic satellite communication link is derived according to the typical motion models of high dynamic aircrafts.Simulation results prove that the calculation error of Doppler frequency shift model is lower than ‰，the model is convenient for engineering applications.On this basis,key problems of carrier synchronization techniques in high dynamic satellite communication link are discussed,and effective solutions are provided. |
| Key words: satellite mobile channel high dynamic satellite communication link Doppler frequency shift carrier synchronization |
