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This algorithm is particularly suited to complement nominal lost-in-space algorithms, which may identify stars incorrectly when the focal length and\/or optical axis offset deviate from their nominal operational ranges. These deviations may be caused, for example, by launch vibrations or thermal variations in orbit. The algorithm performance is compared in terms of accuracy, speed, and robustness to the Pyramid algorithm. These comparisons highlight the clear advantages that a combined approach of these methodologies provides.<\/jats:p>","DOI":"10.3390\/s20092697","type":"journal-article","created":{"date-parts":[[2020,5,11]],"date-time":"2020-05-11T12:26:30Z","timestamp":1589199990000},"page":"2697","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Non-Dimensional Star-Identification"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3750-5067","authenticated-orcid":false,"given":"Carl","family":"Leake","sequence":"first","affiliation":[{"name":"Aerospace Engineering, Texas A&amp;M University, College Station, TX 77843, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8507-4679","authenticated-orcid":false,"given":"David","family":"Arnas","sequence":"additional","affiliation":[{"name":"Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0787-4547","authenticated-orcid":false,"given":"Daniele","family":"Mortari","sequence":"additional","affiliation":[{"name":"Aerospace Engineering, Texas A&amp;M University, College Station, TX 77843, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,5,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"171","DOI":"10.1002\/j.2161-4296.2004.tb00349.x","article-title":"The Pyramid Star Identification Technique","volume":"51","author":"Mortari","year":"2004","journal-title":"ION Navig."},{"key":"ref_2","unstructured":"Mortari, D. (1996, January 11\u201315). A Fast On-Board Autonomous Attitude Determination System Based on a New Star-ID Technique for a Wide FOV Star Tracker. Proceedings of the AAS\/AIAA Space Flight Mechanics Meeting, Austin, TX, USA."},{"key":"ref_3","first-page":"449","article-title":"k-vector Range Searching Techniques","volume":"105","author":"Mortari","year":"2000","journal-title":"Adv. Astronaut. Sci."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"202","DOI":"10.1109\/7.570743","article-title":"A grid algorithm for autonomous star identification","volume":"33","author":"Padgett","year":"1997","journal-title":"IEEE Trans. Aerosp. Electron. 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Sci."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1109\/MAES.2005.1397146","article-title":"Star recognition algorithm for APS star tracker: Oriented triangles","volume":"20","author":"Rousseau","year":"2005","journal-title":"IEEE Aerosp. Electron. Syst. Mag."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"182","DOI":"10.1088\/0004-6256\/149\/6\/182","article-title":"Star Identification Algorithm for Uncalibrated, Wide FOV Cameras","volume":"149","author":"Ajdadi","year":"2015","journal-title":"Astron. J."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Somayehee, F., Nikkhah, A.A., Roshanian, J., and Salahshoor, S. (2019). Blind Star Identification Algorithm. IEEE Trans. Aerosp. Electron. 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