摘要
针对3自由度气浮仿真实验平台的姿态测定中,现有测量手段对气浮台空间占用较大,导致缩减了气浮台可用负载的问题,提出1种基于近景摄影测量的3轴气浮台连续姿态测量方法:分析气浮平台姿态测定的任务需求,采用10参数模型对高精度工业相机进行标定;在气浮平台布设人工标志点,通过台体坐标系将相机坐标系下的测量值转换到真北基准下,完成气浮仿真装置姿态测量平台的搭建,实现对气浮台的连续动态测量。实验结果表明,该方法在3轴方向的重复测量误差,均优于设计的10″容差值,证明具有可行性和有效性,可以为降低航天器系统的研制风险提供参考。
Aiming at the problem that it is reduced for the available load of the air bearing platform due to the large space occupied by the existing measurement methods in the attitude measurement of the three-axis air bearing simulation experiment platform,the paper proposed a continuous attitude measurement method of the three-axis air bearing platform based on close range photogrammetry:the task requirements of the attitude measurement of air flotation platform were analyzed,and the ten parameter model was used to calibrate the high-precise industrial camera;then the artificial mark points were set up in the air flotation platform,and the measured values under the camera calibration system were converted into the true north datum through the platform coordinate system,so as to complete the construction of the attitude measurement platform of the air flotation simulation device and realize the continuous dynamic measurement of the air flotation platform.Experimental result showed that the repeated measurement errors of the proposed method would be better than the designed 10″tolerance value in the three-axis direction,which could provide an reference for reducing the development risk of spacecraft systems with its feasibility and effectiveness.
作者
张继超
兰文琦
金泽林
杨雄丹
周沛希
刘建程
ZHANG Jichao;LAN Wenqi;JIN Zelin;YANG Xiongdan;ZHOU Peixi;LIU Jiancheng(School of Geomatics,Liaoning Technical University,Fuxin,Liaoning 123000,China)
出处
《导航定位学报》
CSCD
2020年第3期69-75,共7页
Journal of Navigation and Positioning
关键词
3轴气浮台
近景摄影测量
标定
真北基准
姿态角测量
three-axis air bearing platform
close range photogrammetry
calibration
true north datum
attitude angle measurement
作者简介
第一作者:张继超(1975-),男,内蒙古赤峰人,博士,副教授,研究方向为遥感数据处理与应用;通信作者:金泽林(1996-),男,辽宁抚顺人,硕士研究生,研究方向为近景摄影测量和工程测量。
