CHEN Wei, ZHENG Yu-quan, XUE Qing-sheng*. Airborne imaging spectrometer with wide field of view and large relative-aperture[J]. Editorial Office of Optics and Precision Engineering, 2015,23(1): 15-21
CHEN Wei, ZHENG Yu-quan, XUE Qing-sheng*. Airborne imaging spectrometer with wide field of view and large relative-aperture[J]. Editorial Office of Optics and Precision Engineering, 2015,23(1): 15-21 DOI: 10.3788/OPE.20152301.0015.
Airborne imaging spectrometer with wide field of view and large relative-aperture
According to the requirements of an airborne imaging spectrometer for the wide angle and large relative-aperture
an optical system for the airborne imaging spectrometer was designed using an off-axis Schwarzschild telescopic system and a double-Schwarzschild spectral imaging system. The imaging spectrometer has specifications by a field of view of 28
a relative-aperture of 1/2.5
and working waveband from 0.4 m to 1 m. Based on the astigmatism-correction condition of double-Schwarzschild spectral imaging system
the initial parameters were calculated. Then
the ray tracing and optimization design were performed by ZEMAX software. The analysis and evaluation on the design show that 88% of the encircled energy for centric and edge wavelengths is within one pixel; both smile and keystone are less than 5% of the size of one pixel
so it is easy for spectral and radiation calibrations. Moreover
the MTF of imaging spectrometer is more than 0.59 for different wavelengths
which satisfies the requirements of specifications. As the spectrometer has a smaller volume and lower mass
it is suitable for airborne remote sensing.
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references
郑玉权, 高志良. CO2探测仪光学系统设计 [J]. 光学 精密工程,2012,20(12):2645-2653. ZHENG Y Q, GAO ZH L. Optical system design of CO2 sounder [J]. Opt. Precision Eng., 2012, 20(12): 2645-2653. (in Chinese)
郑玉权. 温室气体遥感探测仪器发展现状 [J]. 中国光学,2011,4(6):546-561. ZHENG Y Q. Development status of remote sensing instruments for greenhouse gases [J]. Chinese Optics, 2011, 4(6): 546-561. (in Chinese)
赵敏杰, 司福祺, 江宇, 等. 星载大气痕量气体差分吸收光谱仪的实验室定标 [J]. 光学 精密工程, 2013,21(3):567-574. ZHAO J M, SI F Q, JIANG Y, et al.. In-lab calibration of space-borne differential optical absorption spectrometer [J]. Opt. Precision Eng., 2013, 21(3): 567-574. (in Chinese)
赵慧洁, 程宣, 张颖. 用于火星探测的声光可调谐滤波器成像光谱仪 [J]. 光学 精密工程, 2012,20(9):1945-1952. ZHAO H J, CHENG X, ZHANG Y. Design of acousto-optic imaging spectrometer for mars exploration [J]. Opt. Precision Eng., 2012, 20(9): 1945-1952. (in Chinese)
MILES T, JOEL P, ANDREW S, et al.. Advanced airborne hyperspectral imaging system [J]. SPIE, 2002, 4816: 1-11.
DAVIS C O, JEFFE B, ROBBERT A L, et al.. Ocean PHILLS hyperspectral imager: design, characterization, and calibration [J]. Optics Express, 2002, 10(4): 210-221.
安岩,孙强, 刘英,等. 交叉型消像散Czerny-Turner结构光谱仪设计 [J]. 中国光学,2012,5(5):470-475. AN Y,SUN Q, LIU Y, et al.. Design of astigmatism-free crossed Czerny-Turner spectrometer [J]. Chinese Optics, 2012, 5(5): 470-475. (in Chinese)
SEYMOUR R. Inverse Cassegrainian systems [J]. Applied Optics, 1968, 7(8): 1483-1497.
胡大伟, 李艳秋, 刘晓林. 超高数值孔径Schwarzschild投影光刻物镜的光学设计 [J]. 光学学报, 2013,33(1):0122004-1-7. HU D W, LI Y Q, LIU X L. Optical design of hyper numerical-aperture Schwarzschild projection lithographic lens [J]. Acta Optica Sinica, 2013, 33(1): 0122004-1-7. (in Chinese)
郑玉权, 王慧, 王一凡. 星载高光谱成像仪光学系统的选择与设计 [J]. 光学 精密工程, 2009, 17(11): 2629-2637. ZHENG Y Q, WANG H, WANG Y F. Selection and design of optical systems for spaceborne hyperspectral imagers [J]. Opt. Precision Eng., 2009, 17(11): 2629-2637. (in Chinese)
TAE H K, HONG J K, TAE H K,et al.. Design and fabrication of a 900-1 700 nm hyper-spectral imaging spectrometer[J]. Optics Communication, 2010, 283(3): 355-361.
PANTAZIS M. Spectral and spatial uniformity in pushbroom imaging spectrometers [J]. SPIE, 1999, 3753: 133-141.