针对三发弹丸同时着靶时密集度难以测量的难题，提出一种高速单彩色线阵CCD相机的坐标测量方案.以红、蓝、绿三种颜色扇形一字线激光器作为光源，当飞行弹丸穿越CCD相机与光源共面的光幕时，弹丸在投影板上留下投影，用CCD相机采集投影板上的弹丸投影影像和弹丸自身影像.运用图象处理和坐标计算法识别并计算得到投影点的坐标，按照直线相交的原理求解得到弹丸穿越光幕的坐标.实验分析和仿真表明，该方法能够测量三发弹丸同时着靶的密集度，对研制一类高射频**和多管**的弹丸着靶坐标测量系统具有指导意义.

As for the difficulty of measuring the dispersion of three projectiles impacting simultaneously，a method for measuring coordinate by using a single color linear array CCD camera was presented. A highspeed color linear array CCD camera was used, with red, blue and green sectorlike line laser modules as the light source. When passing through the sharing screen of the CCD camera and the light source, the projectiles left projections on the projection board. Meanwhile, the camera captured the images of the projections and projectiles. Then the projection coordinates was identified and calculated by image processing and coordinate computation. By the principle of linear intersection, the impacting coordinates was obtained. The measuring principle and derivation of the measurement formula were described, and the measurement errors were analyzed and simulated. The proposed method, which proves to be effective in measuring the dispersion of three projectiles impacting simultaneously, provides guidance for the development of measuring system for the impacting coordinate of high RF weapons and multibarrel weapons.