航天器工程2025，Vol.34Issue(5)：60-67,8.DOI:10.3969/j.issn.1673-8748.2025.05.008
天都试验星星间测距系统设计与实现
Design and Implementation of Inter-satellite Ranging System for Tiandu Experimental Satellites
夏艳 1崔伟 2龚明宇 1金洁1
作者信息
- 1. 深空探测实验室(天都实验室),合肥 230026
- 2. 深空探测实验室(天都实验室),合肥 230026||上海卫星工程研究所,上海 201109
- 折叠
摘要
Abstract
To meet the application requirements of establishing inter-satellite links within a lunar navigation system,an inter-satellite ranging system has been designed for the Tiandu Experimen-tal Satellites.The system implements inter-satellite Ka-band microwave ranging through a spread-spectrum pseudo-code ranging method based on the principle of dual one-way ranging.This approach offers advantages of simple architecture,high integration,and high measurement accuracy,making it particularly suitable for micro-satellite platforms.The hardware design and inter-satellite link configuration are introduced.Through the co-design of the two satellites and optimized antenna configuration,the system satisfies the required inter-satellite distance while re-ducing the complexity of inter-satellite beam alignment.Meanwhile,highly integrated chips are used to reduce the size and weight of the modules.The feasibility and effectiveness of the system have been verified through ground testing,demonstrating a ranging precision within 1 meter.Furthermore,an on-orbit inter-satellite ranging experiment was conducted for the first time be-tween formation-flying satellites in an elliptical lunar frozen orbit,and the results indicate that the system performance exceeds the design requirements.关键词
星间测距/双向单程测距/Ka频段星间链路/环月大椭圆冻结轨道Key words
inter-satellite ranging/Dual One-way Range(DOWR)/Ka-band inter-satellite link/el-liptical lunar frozen orbit引用本文复制引用
夏艳,崔伟,龚明宇,金洁..天都试验星星间测距系统设计与实现[J].航天器工程,2025,34(5):60-67,8.
