分析线列CCD摄像机交汇测量的原理,以空间虚拟的光电靶代替实物靶来实现对弹丸目标脱靶量的实时获取。在分析了CCD摄像机测角精度与布站方式等影响交汇测量精度的因素后,对光电靶面上不同位置点的CCD摄像机交汇坐标测量精度进行了计算,给出测量精度与布站的关系,指出CCD摄像机正交布站时系统具有最高的测量精度。

Theory of intersectant measurement for linear CCD array camera is studied in this paper.The precision of missile and cannonball are obtained in real time by practical target replacing a dummy target.Analyzing the precision factor of intersectant measurement,then the coordinate measuring precisions of various positions in photoelectric target are calculated.The relation between the measuring precision and the position of the linear CCD array camera has been obtained.The conclusion is the measuring system has highest measuring precision under the condition of the angle of two linear CCD array camer's sight axis is 90°.