摘要
为了使CCD立体相机与干涉成像光谱仪在发射前能够快速检测图像质量,设计并研制了一种应用于CCD立体相机与干涉成像光谱仪共用的地面景物模拟器光学系统。介绍了地检景物模拟器的光学系统方案,根据实际使用要求,确定了地面景物模拟器光学系统的设计参数。该系统焦距为150 mm,视场角为10°,空间分辨率为36 lp/mm,光谱适应范围为0.48~0.96μm。设计结果表明,地面景物模拟器光学系统对被检CCD立体相机与干涉成像光谱仪的图像质量几乎没有影响。其奈奎斯特空间频率上的MTF与CCD立体相机和干涉成像光谱仪的MTF值几乎一样。为验证光学成像探测系统CCD立体相机与干涉成像光谱仪的光机及电子学系统的状态是否正常提供了依据。
In order to realize rapid image quality of CCD stereo camera and imaging spectrometer,an optical system applied in ground scenery simulator was designed.First,the optical system scheme of ground scenery simulator was described.Then on the basis of instrument and system considerations,the optical design parameters were distributed reasonably.The capital optical parameters of the designed system were as follow： f′ was 150 mm,2w was 10°,spatial resolution was 36 lp/mm and spectrum range was 0.48-0.96 μm.The design result shows that the optical system of ground scenery simulator has almost no effect on image quality of CCD stereo camera and imaging spectrometer.The MTF value of its Nyquist special frequency is almost the same with that of CCD stereo camera and imaging spectrometer.It provides a basis for judging the normal state of CCD stereo camera and imaging spectrometer scientifically.
出处
《红外与激光工程》
EI
CSCD
北大核心
2011年第12期2437-2441,共5页
Infrared and Laser Engineering
基金
嫦娥一号卫星光学成像探测系统项目
