线列光纤传像束的调制传递函数评价方法及检测  

Comprehensive estimating and measuring method of line-array fiber-optic image bundles based on the modulation transfer function

作　　者：王慧[1,2] 向阳[1] 禹秉熙[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室 [2]空军航空大学,吉林长春130022

出　　处：《光学精密工程》2005年第2期185-190,共6页Optics and Precision Engineering

基　　金：国家自然科学基金(No.60378015);中国科学院知识创新工程资助(No.C02L07Z)

摘　　要：根据调制传递函数对比度定义,推导了分析线列光纤传像束调制传递函数(MTF)的数理关系,采用数值计算的方式,分析了线列光纤传像束像元与输入信号之间的位相关系对调制传递函数的影响,并进行了实验研究。结果表明,输入信号与线列光纤传像束的位相匹配对调制传递函数有一定的影响。基于对数值分析结果的考虑,提出线列光纤传像束的调制传递函数及评价方法,理论分析与实验结果相吻合。With the definition of the contrast transfer function (CTF), the modulation transfer function (MTF) mathematics-theory relationship of line-array fiber-optics image bundles was established, the influence of phase match between input signal and line-array fiber-optic image bundles on the modulation transfer function was carried out by digital analysis, and the study of experiment was working. The results show that alignment between pixels of image bundle and input pattern has direct influence on measured result of the MTF. A measuring and evaluating method about the MTF of line-array fiber-optic image bundles is studied according to the simulation results. And the analysis is in correspondence with the results of experiment.

关 键 词：光纤传像束 调制传递函数 位相匹配 检测 

分 类 号：TH703[机械工程—仪器科学与技术]