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微光像增强器的性能测试技术研究
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摘要
像增强器是微光夜视产品中的核心部件,像增强器的性能参数决定了微光夜视系统的性能,因此,研究像增强器的性能测试技术有重要意义。本文围绕像增强器的性能测试技术展开研究,各章内容如下:
     第一章回顾和总结了光电成像技术和夜视技术的发展及应用,阐述了研究的意义及内容。
     第二章介绍了微光像增强器的原理、特性、种类、性能参数及其相应的测试原理和方法。
     第三章研制了像增强器亮度增益和等效背景测试仪,对测试仪的光学系统、机械结构、信号处理模块、计算机软硬件分别进行了设计。利用研制的测试仪对多种型号的像增强器的亮度增益和等效背景照度进行了测试,文中给出并分析了测试结果。
     第四章对像增强器的鉴别率测试技术进行了改进研究,建立了鉴别率测试的实验系统,对采用数字图像处理进行鉴别率测试的方法进行了原理性实验,文中给出了实验结果。
     第五章对全文进行了总结,并指出了有待进一步改进的地方。
Image intensifiers are kernel parts of LLL night vision system. The performance of LLL night vision system lies on the parameters of image intensifiers. So, the research on measurement of parameters of image intensifiers is of great importance. In this dissertation, the attention is focused on the measurement technology about the parameters of the image intensifier. The content in this dissertation is summarized as following:
    In the first chapter, the development and application of photoelectric image and LLL night vision are reviewed. The intention and signification are expatiated.
    In the second chapter, the principle, characteristics, types and parameters of LLL image intensifier are introduced. The measurement principle and methods about parameters are also emphasized.
    In the third chapter, the luminance gain and equivalent background input (EBI) testset for LLL image intensifiers is developed. The general structure, optical system, mechanical structure, signal processing module, computer and measurement software of testset are designed. The testset is used to measure the luminance gain and EBI of image intensifiers. The results are given and analyzed.
    In the fourth chapter, the improvement of measurement technology on resolution is discussed. An experimental testset which is used to study the measurement of resolution is constructed. Base on this system, the resolution is experimentally measured by digital image processing. The results are given and analyzed.
    The last chapter summarizes the whole dissertation, and pointes out the problems in the research that should be improved.
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