基于多视场拼接的飞机偏心定位距精确测量

Accurate measurement of aircraft eccentricity based on multi-field splicing

针对某型飞机飞行试验中,无法采用常规机载影像测量方法精确计算飞机滑跑过程偏心定位距的问题,设计了一套基于地面多像机视场拼接的影像测量方案。通过在跑道边多点交错布设高速像机阵列,组成高速像机测量控制网,实现飞机滑跑过程影像的全覆盖;采用多摄像机交会接力测量以及数据拼接的方式,实现飞机偏心定位距的测量。实验仿真结果表明,采用该方案偏心定位距最大测量误差不大于3cm,满足飞行试验精度要求。

For the problem that in a certain type of aircraft flight test,the conventional airborne image measurement method can not be used to accurately calculate the eccentric positioning distance during aircraft running,a set of image measurement scheme based on ground multi-camera field stitching was designed.Through installing the high-speed camera array at the runway side,the high-speed camera control network was composed to achieve the full coverage of the image during aircraft running.By using the way of multi-camera intersection relay measurement and data stitching,the measurement of aircraft eccentric positioning distance was achieved.The simulation results show that using this program the maximum measurement error of aircraft eccentric positioning distance is less than 3 cm,which can meet the flight test accuracy requirements.