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Spacecraft Navigation and Timing Using X-ray Pulsars

机译：使用X射线脉冲星的航天器导航和授时

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摘要

Pulsars are unique celestial sources that produce distinctive, periodic signals. Since their discovery, they have been considered as potential navigation aids and timing beacons to form a reference coordinate system and universal time scale. Further study of these astronomical objects has shown that their pulse timing can achieve sub-microsecond level performance, and interest and research into these sources has grown to conceive a fully autonomous navigation and timing system for deep space vehicles. Sources that radiate within the X-ray band of the electromagnetic spectrum have high potential for creating a practical spacecraft navigation solution, which includes accurate time and position determination onboard a space vehicle using the precisely periodic sources, and precise attitude determination using both pulsating and steady sources. This paper provides an overview of spacecraft navigation methods and various research and results that have evolved since the concept of X-ray pulsar-based navigation was first proposed.
机译：脉冲星是产生独特的周期性信号的独特天体源。自发现以来，它们已被视为潜在的导航辅助工具和定时信标，以形成参考坐标系和通用时标。对这些天文物体的进一步研究表明，它们的脉冲计时可以达到亚微秒级的性能，并且对这些信号源的兴趣和研究也日益增长，以构想出一种用于深空飞行器的完全自主的导航和计时系统。在电磁波谱的X射线波段内辐射的辐射源具有创建实用的航天器导航解决方案的巨大潜力，其中包括使用精确的周期性辐射源在航天器上进行精确的时间和位置确定，以及使用脉动和稳态来进行精确的姿态确定资料来源。本文概述了自从首次提出基于X射线脉冲星的导航概念以来，航天器导航方法以及各种研究和成果。

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