地月空间多源数据融合导航定位技术综述:进展与启示

Cislunar multi-source data fusion for navigation and positioning: a review of advances and insights

  • 摘要: 地月空间航天器数量的快速增长对导航系统的高精度与强自主性提出了严苛要求,而传统地基导航存在固有局限. 为应对该挑战,本文系统梳理并对比了地基测控、天文导航与惯性导航等主要导航技术的基本原理与地月空间适应性,重点探讨了天基导航中的GNSS弱信号增强、星间链路定轨及星际链路自主定轨导航(linked autonomous interplanetary satellite orbit navigation, LiAISON)等前沿方向. 研究表明,天基导航在克服时空基准不一致、信号衰减及资源分配等挑战方面具有显著优势,多源数据融合是实现高性能导航的核心途径. 推动天基导航与多源融合技术协同发展,是构建满足未来地月空间任务需求的高可靠导航体系的关键.

     

    Abstract: The rapid growth in the number of cislunar spacecraft imposes stringent requirements for high-precision and highly autonomous navigation systems, while traditional ground-based navigation exhibits inherent limitations. To address these challenges, this work systematically reviews and compares the fundamental principles and cislunar adaptability of major navigation technologies, including ground-based tracking, celestial navigation, and inertial navigation. Special focus is placed on advanced space-based approaches such as weak GNSS signal enhancement, orbit determination via inter-satellite links, and linked autonomous interplanetary satellite orbit navigation (LiAISON). The study demonstrates that space-based navigation offers significant advantages in overcoming challenges related to spatio-temporal reference inconsistency, signal attenuation, and resource allocation, with multi-source data fusion serving as the core pathway to high-performance navigation. Promoting the synergistic development of space-based navigation and multi-source fusion technology is crucial for constructing a highly reliable navigation architecture capable of meeting the demands of future cislunar missions.

     

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