| 摘要: |
| 基于遥测信号的测距技术可以有效解决深空测距下行链路同时传输遥测、测距信号时出现的遥测数据传输速率受限、频谱带宽增加等问题，应用前景广阔。介绍了基于遥测信号的测距技术发展历程，重点总结了其中的关键技术，包括上行测距码的选择、遥测帧的设计和传输、PN码相位估计算法，最后探讨了其发展趋势。基于遥测信号的测距技术适应未来深空测距的发展需求，是深空测距的重要发展方向之一。 |
| 关键词: 深空探测 遥测信号测距 PN码 遥测帧 |
| DOI： |
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| 基金项目:北京市科技重大专项(Z181100002918004) |
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| Telemetry-based ranging technology and its development trend |
| HOU Yanbing,JIAO Yiwen,YANG Wenge |
| (Department of Optical and Electronics Engineering,Aerospace Engineering University,Beijing 101416,China) |
| Abstract: |
| Telemetry-based ranging technology can effectively solve the problem that the telemetry data transmission rate is limited and spectrum bandwidth will increase when telemetry and ranging signals are transmitted simultaneously in deep space downlink.It has broad application prospect.This paper introduces the development process of telemetry-based ranging technology and focuses on the key technologies,including the selection of uplink ranging code,telemetry frame design and transmission，phase estimation algorithm.Finally,it discusses the development trend of this technology.Telemetry-based ranging technology adapts to the future development needs of deep space ranging and is an important development direction of future deep space ranging. |
| Key words: deep space exploration telemetry-based ranging PN code telemetry frame |
