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《Journal of Optoelectronics.Laser》 2007-06
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Vision Measurement for the Profile of Gossamer Inflatable Spacecraft Antenna

LU Nai-guang1,WANG Yong-qiang1,2,DENG Wen-yi1,DONG Ming-li1,WANG Jun1,2,PAN Zhi-kang1(1.Beijing Institute of Machinery Beijing 100085,China;2.Beijing University of Posts and Telecommunications Beijing 100876,China)  
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.
【Fund】: 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
【CateGory Index】: V443.4
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