Journal of Projectiles, Rockets, Missiles and Guidance >
An Improved Attitude Algorithm for Strap-down Inertial Navigation System
Received date: 2011-08-08
Online published: 2025-05-29
In the attitude calculation of a strap-down inertial navigation system with rotation vector, in order to improve the accuracy of coning error compensation with certain gyro's sampling frequency, the gyro's output from current and previous updating period should be used. A general algorithm applied by N-sample used M-recurrent updating period was provided. The coefficients of this algorithm can be acquired by a simple matrix computation without deduction. Finally, this algorithm can improve the error compensation accuracy without increasing the number of sample by theory analysis and simulative results.
ZHANG Zhaofei , YANG Mengxing , WU Mingqiang . An Improved Attitude Algorithm for Strap-down Inertial Navigation System[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2012 , 32(3) : 6 -10 . DOI: 10.15892/j.cnki.djzdxb.2012.03.012
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