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- W2385301844 abstract "In the injection phase where two segments of measurements are obtained for different trajectories,the classical orbit determination method can not implement a united estimation.It is difficult to further improve the accuracy of the initial orbit determination.The paper improves the position measurement accuracy of tracking stations by analyzing the relation among semi-major axis,tracking errors and orbit eccentricity.A distributed ship position-attitude measurement architecture is adopted to improve the accuracy of ship attitude.The altitude measurements by satellites are used to estimate gravimetric plumb line deflection of the mission area and improve the ship attitude,velocity tracking data obtained by ship-borne radar.Other new methods,such as optimal data preprocessing and injection velocity correction,are also proposed.Numerical results show that the new approaches improve the accuracy over one order of magnitude than the traditional method and will benefit to the tracking plan and guidance of downrange tracking stations." @default.
- W2385301844 created "2016-06-24" @default.
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- W2385301844 date "2014-01-01" @default.
- W2385301844 modified "2023-09-22" @default.
- W2385301844 title "Technical Approaches for Improving Accuracy of Initial Orbit Determination in Injection Phase of Earth-Moon Transfer Trajectory" @default.
- W2385301844 hasPublicationYear "2014" @default.
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