Multiposition observability analysis of strapdown inertial navigation system

Jia Cheng Yu*, Jia Bin Chen, Xue Qiang Xu, Jun Hai Han

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

To investigate the observability of a strapdown inertial navigation system (SINS), on the basis of piecewise constant system observability and singular value decomposition, the variation of singular value in the observability matrix with time is discussed. Simulation results reveal that the system observability is determined mainly by the orientation angle, the maximum of minimal singular value is attained when the direction reaches 180 degree, it changes the fastest in the range from 0 to 90 degrees and changes less with the pitch and roll angles. The degree of observability is determined by the pitch angle and ranges from 10 to 20 degrees, The article provides a theoretical foundation for the study of the fast and accurate alignment of SINS.

Original languageEnglish
Pages (from-to)150-153+157
JournalBeijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume24
Issue number2
Publication statusPublished - Feb 2004

Keywords

  • Multiposition alignment
  • Observability
  • Singular value
  • Strapdown inertial navigation system (SINS)

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Yu, J. C., Chen, J. B., Xu, X. Q., & Han, J. H. (2004). Multiposition observability analysis of strapdown inertial navigation system. Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology, 24(2), 150-153+157.