摘要
从最基本的光电系统成像指标入手,从影响系统分辨率的艾里斑出发,推出光电系统的分辨率。为满足使用要求,对镜头的参数如焦距、相对孔径等各项指标进行逐一确定。从大气、光学系统的影响等方面讨论了整体光电系统对比度的问题。通过分析论证系统的光电指标,对陆-陆光电成像系统的各个性能参数进行匹配计算以确定其中各环节的参数,并对整体的光学系统探测能力进行了详细分析和预估。最后,通过拍摄6 km处1.5 m×1.5 m大小的目标在变倍过程中的清晰效果,证明了这些分析的必要性与正确性。
The resolution of a photoelectrical system was educed by analysing Airy spot, and the focus and F number of the system were confirmed according to the users request. The effects of atmosphere and optical systems on the contrast of object to background were discussed. The every parameter of a land based imaging system was calculated to determine the exact parameter values for each element by demonstrating the photoelectrical properties of the optical system and also the recognized capability of the photoelectrical system was pre-estimated and analysized. Finally, these analysis is proved necessary and accuracy through taking pictures of a objective with size of 1.5 m× 1.5 m from 6 km away.
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
2008年第2期241-247,共7页
Optics and Precision Engineering
基金
国防科技预研基金资助项目(No.1040603)
关键词
光电系统
CCD
光学系统
探测能力
photoelectricity system
CCD
optical system
recognized cap ability
