中国空间科学技术

中国空间科学技术 ›› 2024, Vol. 44 ›› Issue (6): 23-32.doi: 10.16708/j.cnki.1000-758X.2024.0088

• 嫦娥六号探测器和鹊桥二号中继星专题Ⅱ • 上一篇    下一篇

月球轨道交会对接毫米波雷达系统设计与实现

钟兴旺*，杨瑞强，踪念科，王登峰，张文会，蔡春贵，陈素芳   

  1. 中国空间技术研究院西安分院,西安710100
  • 收稿日期:2023-06-19 修回日期:2023-12-15 录用日期:2024-02-27 发布日期:2024-12-03 出版日期:2024-12-05

Design and implementation of millimeter wave radar for lunar orbit rendezvous and docking

ZHONG Xingwang*, YANG Ruiqiang, ZONG Nianke, WANG Dengfeng, ZHANG Wenhui ,CAI Chungui，CHEN Sufang   

  1. China Academy of Space Technology (Xi′an), Xi′an 710100, China
  • Received:2023-06-19 Revision received:2023-12-15 Accepted:2024-02-27 Online:2024-12-03 Published:2024-12-05

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摘要： 针对中国嫦娥五号无人自主月球轨道交会对接任务特点，设计并实现了一种将单通道干涉仪与转动机构融合的角捕获与跟踪测量、双单程伪码测距与载波测速、TURBO编码扩频通信多功能集于一体的毫米波交会对接雷达体制，并对该新体制雷达系统的具体组成、工作过程、测量与通信方法、设计性能及验证进行了说明。新系统具有多元信息测量与双向通信一体化、宽视场、大距离动态、测量精度高、抗多径能力强以及小型轻量化、低功耗等特点。经地面及实际在轨应用验证，该毫米波雷达系统首次实现了月球轨道无人交会对接全程高精度测量与双向通信，性能稳定，测距动态范围可达0.2m到397km, 精度可达±0.017m, 测角视场范围可达360°×130°, 精度优于±0.07°。该系统可应用于嫦娥六号任务。

关键词: 嫦娥五号, 月球轨道, 交会对接, 微波雷达, 测量通信一体化

Abstract:  According to the characteristics of China 's Chang 'e-5 unmanned autonomous lunar orbit rendezvous and docking mission, a millimeter-wave rendezvous and docking radar system is designed and implemented, which integrates angle acquisition and tracking measurement with single channel interferometer and rotating mechanism, double one-way pseudo-code ranging and carrier velocity measurement, and TURBO coded spread spectrum communication. The specific composition, working process, measurement and communication methods，design performance and verification of the new radar system are described. The new system has the characteristics of multi-information measurement and two-way communication integration, wide field of view, large distance dynamics, high measurement accuracy, strong anti-multipath capability, small weight and low power consumption. Verified by ground and actual on-orbit applications, the millimeter-wave radar system realizes the full-range high-precision measurement and two-way communication of lunar orbit unmanned rendezvous and docking for the first time. The performance is stable，and the dynamic range of ranging can reach 0.2m to 397km, the accuracy can reach ± 0.017m, the field of view of angle measurement can reach 360°× 130 °, and the accuracy is better than ± 0.07 °.The system can be applied to the Chang′e-6 mission.

Key words: Chang′e-5；lunar orbit, rendezvous and docking；microwave radar；integration of measurement and communication