摘要
讨论了 CCD在大射电望远镜 5 0 m模型动态位姿测量中的具体应用。首先 ,CCD摄像机连续采集包含馈源舱的图像 ;其次 ,采用双模并行处理法实现馈源舱三个目标点的动态跟踪 ,并根据双目法得到三个目标点的坐标。最后 ,通过小波技术对测量结果滤波和平滑处理 ,然后预估插值 ,获得控制时刻三个目标点的坐标 ,从而可确定馈源舱的位姿和运动轨迹。
The CCD measurement system is introduced to determine three target-points on cabin based on the binocular stereovision. While the cabin is moving, the target-points are found and traced much efficiently by the dual-mode image tracking method. The wavelet filter is introduced for noise-cancelling so the measured and forecasted coordinates could be got. Finally, the smoothed trace and more precise position and orientation of the 6—DOF cabin could be got and sent to the main controllers to realize the close-loop control on cabin.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2004年第1期65-68,85,共5页
Chinese Journal of Scientific Instrument
基金
国家自然科学基金 ( 5 0 0 75 0 65 )
中国科学院国家天文观测中心大射电望远镜实验室经费资助
