Volume 28 Issue 6
Jun.  2002
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LIU Zhun, CHEN Zhe. Study on Theory and Arithmetic of Stationary Alignment for PINS[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(6): 617-620. (in Chinese)
Citation: LIU Zhun, CHEN Zhe. Study on Theory and Arithmetic of Stationary Alignment for PINS[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(6): 617-620. (in Chinese)

Study on Theory and Arithmetic of Stationary Alignment for PINS

  • Received Date: 05 Apr 2001
  • Publish Date: 30 Jun 2002
  • The observability of stationary alignment for PINS was analyzed systemically, and condition number of observable matrix was adopted to compute quantificationally the observability of stationary alignment for PINS. Three unobservable states with the least condition mumber were chosen in this condition, then both adaptive Kalman filter and general Kalman filter was employed to compare for simplified model. Simulation results showed the former was faster than later. Furthermore, a alignment method based on Elman neural network was proposed.

     

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