摘要
根据高分辨力、大视场的要求,考虑到市售探测器的限制,提出了视场分离分光的方法,分析了视场分离分光的原理。利用此方法设计了一个星载高分辨力、大视场高光谱成像仪光学系统,该系统由11.42°远心离轴三反消像散(TMA)望远系统和2个Offner凸面光栅光谱成像系统组成,运用光学设计软件CODEV对高光谱成像仪光学系统进行了光线追迹和优化,并对设计结果进行了分析,分析结果表明,光学系统在各个谱段的光学传递函数均达到0.7以上,完全满足设计指标要求。
Based on the requirements of high resolution and wide field of view, considering the restrictive off-the-shelf detectors, the design method of split Field of View （FOV） is developed. The principle of split FOV is analyzed. A spaceborne high resolution hyperspectral imager with wide FOV is designed using the method. The hyperspectral imager are composed of a 11.42° telecentric off-axis Three-Mirror Anastigmatic （TMA） telescope and two Offner convex grating spectral imaging system. Ray tracing, optimization and analyzing are performed by CODE V software. The analyzed results demonstrate that the Modulation Transfer Function （MTF） for different spectral band is more than 0.7, which satisfies the pre-designed requirement.
出处
《光电工程》
CAS
CSCD
北大核心
2011年第5期16-20,29,共6页
Opto-Electronic Engineering
基金
国家高技术研究发展计划(863计划)基金资助项目(2009AA12Z151)
