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Algorithm for coning error compensation based on angular velocity

  • Guangren Duan*
  • , Ze Zhang
  • , Yong Sun
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

For a strap-down inertial navigation system, the coning error compensation accuracy will be decreased and its real time capability will be worse, when using the angular velocity according to the traditional method. In order to solve this problem, a new algorithm was proposed by using the angular velocity directly without obtaining the angular increment from the angular velocity through Simpson formula or trapezoid formula. Moreover, the four-sample rotation vector algorithm was derived, and the mechanism of the coning error was given. At last, the simulation results of the proposed algorithm and the theoretical one were compared.

Original languageEnglish
Pages (from-to)15-20
Number of pages6
JournalChinese Space Science and Technology
Volume32
Issue number1
DOIs
StatePublished - Feb 2012

Keywords

  • Attitude updating
  • Coning error
  • Equivalent rotation vector
  • Spacecraft
  • Strap-down inertial navigation system

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