A Measure Method of Relative State between Spacecrafts Based on Superresolution Image Reconstruction
In this paper, the measuring methods of relative state parameters between two micro-spacecrafts are studied and a measuring scheme based on monocular computer vision and feature-point target passive imaging measuring is described. In order to solve the problem of the relative position and attitude between spacecrafts with high precision at long distance, a method based on superresolution image reconstruction is presented. Firstly, the degraded imaging model of camera and the algorithm of image registration are studied. Secondly, the algorithm of image reconstruction based on optimize idea and the algorithm based on superresolution are proposed. Finally, the validity of the algorithm is tested by the actual data from the ground prototype system. Through the measured data of ground prototype testing system, the correctness, feasibility and reliability in certain distance of algorithm are demonstrated.It is also indicated that testing accuracy in long distance is improved greatly, which attains centimeter level at the distance of fifty meter. It is demonstrated that the method guarantees high precision measurement of relative state parameter.
ZENG Dexian ZHAO Jiguang LI Rui
The Academy of Equipment Command & Technology, Beijing 101416, China
国际会议
北京
英文
2007-08-05（万方平台首次上网日期，不代表论文的发表时间）