The Progress of Autonomous Celestial Navigation for Deep Space Spacecraft

Abstract

In response to the urgent needs of deep space explorer for autonomous celestial navigation，this paper briefly introduces the research status of autonomous celestial navigation methods and summarizes the problems faced by current autonomous celestial navigation methods. As the error sources of the celestial navigation system is multiple and time-varying，two error suppression technologies based on augmented filtering and differential are expound in detail. In view of the limitations of the existing autonomous celestial navigation methods，the autonomous celestial integrated navigation methods are introduced in detail. Finally，the future development trend of the celestial navigation method for the deep space spacecraft is prospected.

Keywords

deep space exploration / autonomous navigation / celestial navigation / time difference / time delay