A Novel Two-Step Validation Algorithm for Lost-in-Space Star Identification | IEEE Journals & Magazine | IEEE Xplore

A Novel Two-Step Validation Algorithm for Lost-in-Space Star Identification


Abstract:

Since star identification algorithms most likely yield multiple matching candidates, validation algorithms are required for star trackers. Traditional validation is perfo...Show More

Abstract:

Since star identification algorithms most likely yield multiple matching candidates, validation algorithms are required for star trackers. Traditional validation is performed in an iteratively cascaded way by incrementally introducing new star points for help, costing plenty of inefficient lookups and complex combinations, but leading to nondeterministic results only. Focusing on this problem, this paper considers a novel validation idea that the attitude estimate perturbation caused by bounded measuring noises should be bounded as well. As a result, a two-step validation algorithm is proposed following a noniterative deterministic structure. Theoretical analyses and simulation examples are both given to demonstrate the algorithm.
Published in: IEEE Transactions on Aerospace and Electronic Systems ( Volume: 56, Issue: 3, June 2020)
Page(s): 2272 - 2279
Date of Publication: 02 October 2019

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