A tracking method for GEO space targets based on adaptive memory attenuation UKF

Abstract Aiming at the problem that nonlinearity of tracking state equation and strong noise in measurement process target, a non-cooperative target method geostationary earth orbit based on adaptive memory attenuation UKF is proposed. Firstly, relative motion model constructed, are established. Use adjustment factor to enhance correction effect new estimation, improve adaptability filtering noise, finally trajectory space obtained. Finally, standard algorithm improved applied compared by simulation. The deviation three coordinate axis components actual predicted used as evaluation index. simulation results show accuracy significantly improved, while taking into account real-time performance on-orbit tracking.