基于数字近景摄影测量的天线变形测量  

Displacement measurement of antennas by means of digital close range photogrammetry

作　　者：于江[1] 蒋山平[1] 杨林华[1] 

机构地区：[1]北京卫星环境工程研究所,北京100094

出　　处：《航天器环境工程》2008年第1期56-58,3,共3页Spacecraft Environment Engineering

摘　　要：文章介绍了基于数字近景摄影测量原理的天线变形测量方法。该方法利用2台CCD相机交会摄影来获取被测面图像,并对被测面上特殊标志点进行中心坐标提取,然后利用光束法平差解算标志点中心坐标。测量精度可达到1:50000,可用于卫星天线研制过程中空间环境模拟试验的检验,为卫星天线在轨正常工作提供可靠性保证。This paper discusses the displacement measurement of antennas by means of digital close range photogrammetry. Two convergent CCD cameras are used to obtain pictures of the measured surfaces,the images' central coordinates of special targets on the surfaces are deduced,and then the central coordinates of the targets are calculated by the bundle method. The accuracy may reach 1:20000,and the method can be applied in satellite antennas' test under space simulation conditions before launch,to ensure antennas' reliable work.

关 键 词：近景摄影测量 天线变形 相机标定 中心提取 

分 类 号：V416.5[航空宇航科学与技术—航空宇航推进理论与工程]