Simulation for Position Accuracy of Space Exploration Vehicle

Abstract

The position accuracy adjustment is an important part of the position of space exploration vehicle. Aiming at this problem, a method of designing an automatic adjustment system for positioning accuracy of space exploration vehicle based on pseudo range differential positioning is proposed. By analyzing the function of each module of the system, the automatic adjustment system for positioning accuracy of space exploration vehicle is designed. On this basis, the object contour of the positioning image is located by the adaptive smoothing method. According to this theory, the geometric centre values of two contour points near the centre point in the contour range are calculated and the curvature angle is further calculated to get the curvature symbols. By describing the changing process of each feature in the positioning process with the transition between states, a hidden Markov model is constructed to effectively adjust the positioning accuracy. Experiments show that the proposed method can effectively improve the positioning accuracy of aircraft, effectively reduce the positioning error of the system and has good application value.