Abstract:

In a real Strapdown Inertial Navigation System (SINS), there exist coning error and sculling error. The coning error for attitude determination and sculling error for velocity updating are introduced when there are angle vibration and line vibration to the mobiles. A high accuracy algorithm for the sculling error compensation is proposed with the generic equivalency. The accuracy of the proposed algorithm is confirmed by simulation.

Key words: strap down inertial navigation system, coning error, sculling error, generic equivalency, velocity update