中文摘要：

浮空器由于长期空中作业,导致其装载的惯性导航系统输出姿态的积累误差越来越大,必须进行定期校准。针对这个问题,提出利用已校准精密惯性导航系统对浮空器进行姿态校准,其关键是测量两个基座固连坐标系之间的相对角度。对该相对角度测量系统进行了设计：地面激光发射装置发射经过磁光调制的线偏振光,接收装置采用CCD和光电二极管分别测量俯仰角、滚转角和偏航角。考虑强大气效应和激光远距离传输的影响,该系统三维相对角度的理论测量精度可达到10-4 rad,太空背景下的测量精度可提高两个数量级,对非接触物体间的相对姿态测量具有重要意义。

英文摘要：

Because of the long-term aerial operation,the accumulated error of inertial navigatin system on the aerosta is enlarging,which has to be periodically calibrated.In order to resolve the problem,a method using a calibrated precise inertial navigatin system was proposed to calibrate the attitude of aerosta.The key point was to measure the relative angle of attached coordinate systems on the two basements.The relative angle measurement system was designed.The laser transmitter on the ground was used to emit linearly polarized light through magneto-optic modulator.The CCD and optoelectronic diode were used to measure pitch,roll and yaw angles respectively.Considering the strong atmospheric effect and laser remote transmission,the measurement accuracy of the three-dimension relative angles is almost 10-4 rad,which could promote two orders of magnitude in space application.It′s important for the non-contact relative attitude measurement.