航天器薄膜充气天线面形的视觉测量方法  

Vision Measurement for the Profile of Gossamer Inflatable Spacecraft Antenna

作　　者：吕乃光[1] 王永强[1] 邓文怡[1] 董明利[1] 王君[1] 潘志康[1] 

机构地区：[1]北京机械工业学院电信系,北京100085

出　　处：《光电子．激光》2007年第6期714-716,共3页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目(50475176);北京市自然科学基金;北京市教委科技发展计划重点资助项目(KZ200511232019);北京市优秀人才培养专项资助项目(20041D0500601);机电系统测控北京市重点实验室资助项目

摘　　要：利用视觉测量的方法,对直径3.5 m的薄膜充气天线进行了高精度测量,测量过程分为空间点坐标计算、薄膜充气天线面形的拟合及精度分析。测量结果表明,该方法的相对精度达到1/2,000。The antenna,solar sails and redar arrays in spacecraft made of different gossamer materials are developed widely in space technology. The conventional measurement methods cannot reach the demand of these large-scale and flexible structures. The vision measurement method can be considered as the optimal solution in the profile measurement of gossamer spacecraft because of its advantages of noncontact and rapid data acquisition. A videogrammetric system for a 3.5 m diameter gossamer inflatable antenna is presented. There are three steps in the measurement procedure： the computation to 3-D coordinate of measured points,the least square fitting of the profile of gossamer inflatable antenna and the precision analysis. The relative accuracy of 1/2 000 can be achieved.

关 键 词：航天器薄膜充气天线 视觉测量 面形测量 

分 类 号：TP206.1[自动化与计算机技术—检测技术与自动化装置]