Relative pose measurement of Satellite and rocket based on photogrammetry

Abstract

This paper presents a method of measuring the relative pose of Satellite-rocket separation based on image measurement. In the camera parameters are known, the camera installed on the rocket launcher, and more than six cooperation signs are fixed on the satellite. Using cameras take pictures of the cooperation signs in real time. Based on the basic principle of monocular vision pose estimation. The relative pose relationship between satellite and rocket is solved by combining EPnP with Orthogonal Iteration. The simulation experiment and the semi - physical simulation experiment prove the feasibility and accuracy of the method. The measurement error is calculated according to the error calculation method proposed in this paper. The results show that the relative position measurement error and the relative attitude measurement error are within the measurement range.