Research On Key Technology For CCD Intersection Optical Target

With the development of modern science technology, modern measuring technology and science research put forward a more and more high demand to the test of target object, which means traditional and laggard method of target testing has already dissatisfied the demands of modern shooting training and weapon outfield characteristic testing. Since the beginning of 1980s, countries allover the world have turned the emphasis of studying on the testing system of weapon standing target to the CCD intersection optical target. The principle of CCD optical target is that 2 linear-array CCD cameras are used as detecting devices to compose optical imaging system and its main light-axis is crossing in vertical-side to compose virtual target screen, whose core part is CCD data acquiring system. Based on absorbing some correlated domestic and overseas researching results, this paper introduces the thorough research on the key technology of CCD optical target acquiring system. Firstly, on the basis of analyzing domestic and overseas CCD optical target researching actuality, some key problems of designing CCD optical acquiring system that needs to face are introduced, and the main work for researching this subject is brought up. Secondly, starting with the sort and figuration of CCD, CCD sorting, main technology parameters and its application theory are introduced detailedly, and internal and external synchronism scheduling controlling problem of CCD camera is talked and analyzed prioritially. Thirdly, in the positioning way of CCD intersection optical target. Computer simulating technology is used to do optimizing design on positioning way, and the three-dimensional picture of synthetic error distribution of each point in different positioning way is get fourthly. And by the analysis on the measuring error, integrating with the characteristics of CCD cameras which are chosen for use actually, a best figuration parameter of CCD intersection optical target system can be get in theory. Fourthly, taking high speed CCD chip IL-P3 made by Canada DALSA company for example, based on the CCD driving scheduling, started with correlation technology parameter of CCD, a thorough analysis of correlation conditions of its design is given; then some existed ways of making driving scheduling are introduced, and the software and hardware of the circuit designing are debugged, the timing simulation and correlation testing waves of CCD driving circuit are given. Fifthly, in CCD acquiring system, noise is a important parameter, which is one of the main factors that determine the SNR. For improving the SNR of output...