某型机载武器投放轨迹姿态测量方法研究

某型机载武器飞行试验中，由于测试用摄像机安装位置的特殊性，导致摄像机视场交会区域较小，无法采用常规影像交会测量的方法获取武器投放过程的轨迹、姿态运动参数，针对该问题，设计了一套适用于近距离、大倾角条件下的机载武器投放试验影像测试方案。通过设计90°和120°弯折光路的特殊弯管镜头，转换摄像机安装位置，解决武器投放影像获取问题，通过建立大倾角多摄像机联合计算模型，实现了武器投放轨迹、姿态的测量。实验室仿真实验结果表明，采用该方案轨迹最大测量误差不大于2 cm，满足飞行试验精度要求。

Method for measuring delivery trajectory and attitudeof a certain type of airborne weapon

Due to the special characteristics of the installation location for testing camera in the flight test of a certain type of airborne weapon, the field intersection area of camera is smaller, so as the trajectory and attitude motion parameters of the weapon delivery process cannot be calculated by using the conventional image measurement method.Aiming at this problem, a set of scheme for measuring airborne weapon delivery test image under conditions of close range and large dip angle was designed.Through designing the 90° bend lens and the 120° bend lens to change the camera mounting position, the problem of weapon delivery image acquisition was solved.By establishing the large dip angle multi-camera data-joint calculation model, the trajectory and attitude measurement of the weapon was realized.The simulation results show that using the maximum trajectory measurement error by this program is less than 2 cm, which can meet the flight test accuracy requirements.