由于太阳能电池翼的大跨度,低刚度特点,加之太空中阻尼较弱,使得电池翼极易产生低频非线性的持续振动。传统的传感器测量振动的方法很难实现。因此设计了非接触的摄影测量方案,并提出了采用光束平差法来修正目标点位置坐标,并且在某些相机参数可能发生变化的情况下,采用光束平差的方法来修正相机的外参数,大大提高了本方案的鲁棒性能。最后采用数值仿真的方法验证了光束平差法修正相机外参数的可行性。

Due to the large span,small elasticity and feebleness damp in aerospace,the solar panel easily generates non-linear vibration with low frequency.It is difficult to measure the vibration with traditional sensors.This paper gives a design to measure the vibration with photogrammetric survey,and at the same time,the method of bundle adjustment is applied to modify the position of targets.Sometimes the parameters of the camera may be changed,bundle adjustment is secondly applied to modify the changed parameters,which advances the robust of this design.At last,this paper testifies the feasibility of bundle adjustment applied in the design to modify the camera's parameters with numerical emulator.