EKF/UKF在编队飞行卫星GPS相对导航中的应用

Abstract

Abstract: Accurate relative position and velocity determination are required for formation flying of spacecrafts.The comparison of EKF and UKF algorithms for relative navigation based on carrier differential global position system for formation flying is given in this paper.Simulation results indicate that the UKF has better accurate but longer computation time than the EKF since difference of filter’s principles.Both filters are used in practical application for consideration of navigation system redundancy and reliability.

Key words: extended Kalman filter, unscented Kalman filter, carrier differential global position system, spacecrafts formation flying, relative navigation

CLC Number:

TN967.1

CHU Rui. Application of EKF/UKF in the GPS Relative Navigation for Formation Flying of Spacecrafts[J]., 2008, 34(5): 57-60.

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Application of EKF/UKF in the GPS Relative Navigation for Formation Flying of Spacecrafts

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