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光学系统及探测器的极限分辨率是影响激光主动成像系统分辨能力的主要因素,系统调制传递函数(MTF)是表征系统性能的重要指标。为了提高激光主动成像系统成像分辨率和MTF,分析了接收光学系统和探测器尺寸间的相互匹配关系,给出了光学系统参数的设计步骤,并对匹配条件和设计方法进行了实验验证。
The limit resolution of optical system and detector is the main factor affecting the resolving power of laser active imaging system. The system modulation transfer function (MTF) is an important index to characterize system performance. In order to improve the imaging resolution and MTF of the laser active imaging system, the mutual matching between the receiving optical system and the detector size was analyzed. The design steps of the optical system parameters were given. The matching conditions and the design method were also validated.