Journal of Applied Sciences ›› 2005, Vol. 23 ›› Issue (3): 324-326.

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A Study on the Error Estimation of INS Installed on Submarines

LIU Wei-ren1, ZHUANG Liang-jie2   

  1. 1. School of Mechanical Engineering, Tianjin University, Tianjin 300072, China;
    2. Tianjin Navigation Instrument Research Institute, Tianjin 300131, China
  • Received:2004-03-02 Revised:2004-05-08 Online:2005-05-31 Published:2005-05-31

Abstract: In order to ensure the output precision of long-time-working INS(inertial navigation system), it is necessary to reset the INS to ensure the safety of submarines.A simply but efficient scheme has been designed according to the characteristics of submarines underwater navigation.The analysis and simulation results show that this scheme can estimate the velocity errors of INS efficiently.Finally, the feasibility of this scheme is also analyzed.

Key words: INS, errors estimation, level damp, least-square algorithm

CLC Number: