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Guide star catalog generation of star sensors for interstellar navigation
Journal of Astronomical Telescopes, Instruments, and Systems ( IF 2.3 ) Pub Date : 2020-12-01 , DOI: 10.1117/1.jatis.6.4.044006 Liang Wu 1
Journal of Astronomical Telescopes, Instruments, and Systems ( IF 2.3 ) Pub Date : 2020-12-01 , DOI: 10.1117/1.jatis.6.4.044006 Liang Wu 1
Affiliation
In interstellar travel, parallax and stellar aberration have a non-negligible influence on the star identification of star sensors. Through the analysis of the working principle of star sensors, only the guide star catalog generation can solve this problem. The influence mechanism of parallax and stellar aberration is synthetically analyzed by four-dimensional time-space diagrams, and a generation algorithm of the guide star catalog for the interstellar star identification is presented. The update cycle of the catalog is studied, and a block update method based on the distance distribution is given. The Hipparcos catalog is adopted as the fundamental catalog. On the premise of meeting the accuracy requirement of star identification, the maximum travel distance supported by the catalog is about 0.3 light-years. In order to balance the star identification and the influence of parallax, eliminating 30% to 40% of the nearby guide stars is an optimal criterion for the guide star selection. The analysis of the catalog distribution shows that the parallax and the stellar aberration have opposite effects on the distribution of guide stars. The methods and conclusions provide a theoretical basis for interstellar celestial navigation.
中文翻译:
指导星图目录生成星际传感器的星际导航
在星际旅行中,视差和恒星像差对恒星传感器的恒星识别影响不可忽略。通过对恒星传感器工作原理的分析,只有引导星目录的生成才能解决此问题。通过四维时空图综合分析了视差和恒星像差的影响机理,提出了用于星际恒星识别的导星目录生成算法。研究了目录的更新周期,给出了基于距离分布的块更新方法。Hipparcos目录被用作基本目录。在满足恒星识别精度要求的前提下,目录支持的最大行驶距离约为0.3光年。为了平衡恒星识别和视差的影响,消除30%至40%的附近引导星是选择引导星的最佳标准。对目录分布的分析表明,视差和恒星像差对引导星的分布具有相反的影响。这些方法和结论为星际天体导航提供了理论基础。
更新日期:2020-12-26
中文翻译:
指导星图目录生成星际传感器的星际导航
在星际旅行中,视差和恒星像差对恒星传感器的恒星识别影响不可忽略。通过对恒星传感器工作原理的分析,只有引导星目录的生成才能解决此问题。通过四维时空图综合分析了视差和恒星像差的影响机理,提出了用于星际恒星识别的导星目录生成算法。研究了目录的更新周期,给出了基于距离分布的块更新方法。Hipparcos目录被用作基本目录。在满足恒星识别精度要求的前提下,目录支持的最大行驶距离约为0.3光年。为了平衡恒星识别和视差的影响,消除30%至40%的附近引导星是选择引导星的最佳标准。对目录分布的分析表明,视差和恒星像差对引导星的分布具有相反的影响。这些方法和结论为星际天体导航提供了理论基础。