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针对GPS采样频率低、动态精度差的问题,为了在飞机起降性能测试课题中获取更高频率、更高精度的位置、速度等参数信息,利用高速像机阵列对飞机的起飞着陆运动过程进行接力拍摄,通过对各站点高速像机拍摄到的图像序列分析处理,利用数字图像处理技术、近景数字摄影测量三维直接线性变换(DLT)等算法,解算出了飞机的位置及速度数据。该方法对其他类似飞行物的轨迹测量具有指导意义。
Aiming at the problem of low GPS sampling frequency and poor dynamic precision, in order to obtain the parameters of higher frequency, higher accuracy of position and velocity in the test of aircraft takeoff and landing performance, the high-speed camera array is used to take off the landing movement of the aircraft Relay shooting, through the image sequences of high-speed camera at each site analysis and processing, the use of digital image processing technology, close-range digital photogrammetric three-dimensional direct linear transform (DLT) and other algorithms to solve the aircraft’s position and velocity data. This method is instructive for the trajectory measurement of other similar flying objects.