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Opt."],"published-print":{"date-parts":[[2024,5,10]]},"abstract":"<jats:p>Star trackers are typically used in a spacecraft to provide absolute attitude information to the on-board attitude control system so as to promote high accuracy. The performance of the star tracker is rather important. Attitude incorrectness provided by star trackers may lead to bad navigation with big deviations, even failure of satellites. Therefore, how to realize and verify the accuracy is crucial. As a matter of fact, it is difficult to validate accuracy of star trackers on the ground, especially for star trackers under highly dynamic conditions. In this paper, an accuracy measurement method for star trackers under dynamic conditions is proposed, utilizing a high-accuracy swing table to provide reference to compare. To this end, a swing table, star tracker, and the test equipment are synchronized, in order to reduce systematic errors. As the motion trajectory of the swing table can be set beforehand, the initial attitude of the star tracker can be predicted through a set of coordinate transformations. As a result, the star tracker is able to keep tracking, regardless of the angular velocity of the swing table. This makes the statistical sample points more sufficient and the results more reliable. Moreover, it can evaluate the angular velocity of star trackers up to 20\u00b0\/s. In comparison with the conventional method with simulated stars, this method utilizes real navigation stars as observation targets making the measurement results much closer to the on-orbit performance. Lastly, but much more importantly, it can also verify the performance of a star tracker in one experiment, such as sensitivity, static performance, capture probability, and so on. Experimental results demonstrate that the proposed method is effective, especially for highly dynamic star trackers. Such a measurement environment is close to the in-orbit conditions, and it can satisfy the stringent requirement for star trackers under high dynamics.<\/jats:p>","DOI":"10.1364\/ao.507209","type":"journal-article","created":{"date-parts":[[2024,4,12]],"date-time":"2024-04-12T13:00:05Z","timestamp":1712926805000},"page":"3854","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Dynamic accuracy measurement method for star\u00a0trackers using a time-synchronized high-accuracy turntable"],"prefix":"10.1364","volume":"63","author":[{"given":"Rui","family":"Lu","sequence":"first","affiliation":[{"name":"Beijing Institute of Control Engineering"},{"name":"China Academy of Space Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianfu","family":"Zhang","sequence":"additional","affiliation":[{"name":"Beijing Institute of Control Engineering"},{"name":"China Academy of Space Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xing","family":"Han","sequence":"additional","affiliation":[{"name":"Beijing Institute of Control Engineering"},{"name":"China Academy of Space Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanpeng","family":"Wu","sequence":"additional","affiliation":[{"name":"Beijing Institute of Control Engineering"},{"name":"China Academy of Space Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lin","family":"Li","sequence":"additional","affiliation":[{"name":"Beijing Institute of Control Engineering"},{"name":"China Academy of Space Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2024,5,7]]},"reference":[{"key":"ao-63-14-3854-R1","doi-asserted-by":"publisher","first-page":"587","DOI":"10.1109\/TAES.2002.1008988","volume":"38","author":"Liebe","year":"2002","journal-title":"IEEE Trans. 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