摘要
陀螺稳定座架和位置姿态系统(Position and Orientation System,POS)一起构成了移动成图系统(Mobile Mapping System,MMS)的稳定控制部分,POS的位置和姿态角必须达到很高的精度才能满足成图需求。提出了基于陀螺稳定座架的活动杆臂补偿技术,利用陀螺稳定座架测量的姿态角对测绘作业过程中卫星天线到POS的活动杆臂进行解算,对POS输出的位置和速度进行变杆臂补偿,获得更加精确的位置和姿态角信息。机载试验结果表明,该算法可以获得高精度的位置信息,且对姿态角精度有一定提高,是一种有效的系统活动杆臂补偿技术。
Gyro-stabilized platform together with Position and Orientation System（POS） are the stabilized controlling component of the Mobile Mapping System（ MMS）,and its high navigation precision has a direct effect on imaging. A varying arm compensation algorithm based on gyro-stabilized platform is proposed. The varying arm between GPS antenna and POS during mapping is computed using attitude of gyro-stabilized platform. Compensating the varying arm in position and velocity computation of POS,we can get much more precise position and orientation. The experiment results show that this method can not only export high presion position,but also improve orientation precision a little. So it＇ s an effective varying arm compensation algorithm for MMS.
出处
《导航定位与授时》
2016年第3期32-36,共5页
Navigation Positioning and Timing
基金
国防科工局技术基础科研项目(C042012C002)
关键词
陀螺稳定座架
活动杆臂
POS
移动成图系统
Gyro-stabilized platform
Varying arm
Position and Orientation System（POS）
Mobile Mapping System（MMS）
