为了研究高速飞行弹丸的运动姿态问题, 提出转镜同步跟踪技术。在高速CCD相机主光轴方向放置一面转镜, 将弹道线位置上飞行弹丸的运动姿态反射到高速CCD相机内实现同步跟踪。设计了基于高速CCD相机视场中点的转镜跟踪系统, 建立了弹丸和转镜的运动模型, 并利用MATLAB软件得到了其随时间变化的曲线, 分析了相机和转镜空间位置对成像质量的影响。针对参数H=200 m, V=100 m/s, 对系统存在的误差进行了分析, 结果表明该系统可以实现对高速弹丸的同步跟踪。

In order to study the problem of motion attitude of high-speed flying projectiles, a rotating mirror synchronization tracking technique is proposed. A rotating mirror is placed in the direction of the main optical axis of the high speed CCD camera. The motion of the projectile in the ballistic line is reflected to the high speed CCD camera to achieve synchronous tracking. A rotating mirror tracking system based on the midpoint of the field of view of the high-speed CCD camera is designed. In the system, the motion model of projectiles and rotating mirrors is set up, and the curves of time varying with the MATLAB software are obtained. When the parameters are H=300 m and V=100 m/s, the errors existing in the system are analyzed. The results show that the system can achieve synchronous tracking of high-speed projectiles.