Exploration of Strong Tracking UKF Used in the SINS/GPS Integrated Navigation
LU Hai-yong · Avionics Technology · 2008
Aimed at solving filtering divergence in the SINS/GPS integrated navigation under the conditions of a highly mobile aircraft,combined with UKF algorithm,a strong tracking UKF algorithm is proposed.By the introduction of fading factor adjusting gain on-line,the value of old data is reduced while the value of new data is increased,thereby UKF filter tracking performance is improved.The results of computer simulation and real data solution show that Strong tracking UKF algorithm can improve real-time performance and the stability under abrupt catastrophe state,the effectiveness of fading memory UKF Algorithm is demonstrated.