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An autonomous predicted star locations algorithm for star sensor

  • Beihang University
  • Shanghai Aerospace Control and Engineering Institute

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The larger area threshold scan window in star image is scanned with conventional star tracking algorithm under large maneuvering of the vehicle. This results that the number of calculating angular separation between two stars is increased. So the update rate of star sensor is decreased and the feasibility of errors star locations is increased. So, an autonomous predicted star locations algorithm with high angle velocity is presented in this paper. Firstly, the actual star locations are obtained within the threshold scan window of corresponding ideal star locations calculated by last frame in the current star image. Secondly the current attitude information is calculated with the obtaining actual star locations. Thirdly, the next ideal attitude is calculated with current attitude and last attitude. Finally, the next ideal star locations are calculated with the next ideal attitude. At last the algorithm are tested not only simulation but also at night sky experiment with the angular speed maneuvering of aircraft is 5.208681°/s in 2013. And the algorithm has be applied star sensor of satellite GNC.

Original languageEnglish
Title of host publicationMechanical Design and Power Engineering
Pages1671-1675
Number of pages5
DOIs
StatePublished - 2014
Event2013 2nd International Conference on Mechanical Design and Power Engineering, ICMDPE 2013 - Beijing, China
Duration: 29 Nov 201330 Nov 2013

Publication series

NameApplied Mechanics and Materials
Volume490-491
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2013 2nd International Conference on Mechanical Design and Power Engineering, ICMDPE 2013
Country/TerritoryChina
CityBeijing
Period29/11/1330/11/13

Keywords

  • Celestial navigation
  • Predictive star centroiding algorithm
  • Star sensor
  • Star tracking algorithm

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