中文摘要：

现有自动化弹丸着靶坐标测量设备均无法用于测量2发弹丸同时着靶情况下的坐标，针对该问题，提出一种基于单线阵CCD相机的双目标同时着靶坐标测量方案。采用一台高速线阵CCD相机，配合2个不同波长的半导体扇形一字线激光器和投影板作为光源，将CCD相机的探测光幕面和2个激光器的光幕面以及投影板投影面设置在同一个平面内，当有2发弹丸同时穿越探测光幕面时，挡住了2个激光器投射在投影板上的部分光线，并在投影板上留下对应2发弹丸的投影，CCD相机采集到2发弹丸投影的影像和2发弹丸自身的影像，并通过计算机图像处理的方法对2种影像加以区分，得到投影点的位置坐标，采用基于直线相交原理建立系统数学模型，进而求解2发弹丸的着靶坐标。给出了测量原理及测量公式，并对测量误差进行了分析和仿真，实验结果表明实际测量误差和理论分析值一致。该方案成功解决了双目标同时着靶情况下的坐标测量难题，基于该原理的装置可以用于一类高射频武器和多管武器的弹丸着靶坐标测量。

英文摘要：

In consideration of the fact that the current automatic measuring systems for impact coordinates fail to measure the coordinates of simultaneous two-projectile impact on target, a coordinate measuring scheme of simultaneous two-projectile impact on target based on a linear array CCD camera is presented. A high speed linear CCD camera, two different wavelength semiconductor lasers and a projection board are used in the scheme. The detection light screen of CCD camera, the light screen of the two lasers and the projection plane of projection board are placed in a plane. When two projectiles pass through the de- tection light screen at the same time, they block out partial laser light projected on the projection board and leave their shadows on it, meanwhile the shadows and images of the two projectiles are acquired by the CCD camera. The shadows and images are differentiated to obtain the position coordinates of projected points by using a computer image processing method, and then the coordinates of simultaneous two-projectile impact on target are obtained by a mathematic model based on the principle of straight line inter- section. The measuring principle and formulas are provided, and the measuring error is simulated and an- alyzed. Experimental results show that the error of the actual measurement value and the theoretical anal- ysis are consistent. The measuring principle can be used to successfully measure the coordinate of simul- taneous two-projectile impact on target, and the measuring system based on the measuring principle can be applicable to measure the impact coordinates of projectiles of high RF weapons and muhibarrel weap- ons.