条带式CCD像机及光学拼接

CCD camera with long narrow photosensitive surface and optical butting

以电荷耦合器件ＣＣＤ 作为探测器，微机作为处理系统，讨论了如何用ＣＣＤ 像机代替以胶片作为记录介质的传统的弹道像机。通过光学拼接、数字拼接、ＣＣＤ同步，使两块面阵ＣＣＤ拼接成一字形。通过预转一个角度，满足对ＣＣＤ 像机的视场要求。通过Ａ／Ｄ 转换、帧相关、阈值处理、特征提取、假目标剔除等先进的数字信号采集和处理技术，使测试实现准实时化。

In this article,we discuss the replacement of CCD trajectory camera using CCD as a detector and microcomputer as the processing system by the traditional trajectory camera using film as recording media.By means of optical and digital butting,and CCD synchronization,two pieces of CCDs are parallelly butted.By virtue of turning a fixed angle before measurement,the CCD camera can meet the requirements of the field of view.In terms of advanced digital signal collection and processing technology such as A/D transformation,frame correlation,threshold value processing,characteristic extraction,and pseudo-target rejection,etc.quasi-real-time measurement can be realized.