关键词: 可展开天线, 动态展开, 立体视觉

Abstract: A method for monitoring the dynamic deployment process of a spaceborne antenna based on the principle of stereo vision is introduced. Through the research of key technologies such as the calibration method based on standard length, the calculation of binocular stereo vision intersection coordinates and dynamic multi-target recognition and tracking, the measurement of the three-dimensional motion trajectory of each joint point of the deployable antenna during the unfolding process was realized, and experimental verification was obtained. The three-dimensional point coordinates of each joint point at different times, and surface shape at the unfolding movement of the spaceborne antenna can be obtained by this method, also the motion speed and acceleration, and surface ship of deployment can be calculated. Necessary references for the design, dynamic analysis and deployment reliability analysis of the flexible mechanism of the large-scale deployable antenna are provided.

Key words: Deployable antenna, Dynamic deployment, Stereo vision