Optical design of imaging spectrometer based on linear variable filter for nighttime light remote sensing

doi:10.3390/s21134313

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Optical design of imaging spectrometer based on linear variable filter for nighttime light remote sensing
	Y. Xie; C. Liu; S. Liu and X. Fan
刊名	Sensors
	2021
卷号	21 期号:13
ISSN号	14248220
DOI	10.3390/s21134313
英文摘要	Nighttime light remote sensing has unique advantages on reflecting human activities, and thus has been used in many fields including estimating population and GDP, analyzing light pollution and monitoring disasters and conflict. However, the existing nighttime light remote sensors have many limitations because they are subject to one or more shortcomings such as coarse spatial resolution, restricted swath width and lack of multi-spectral data. Therefore, we propose an optical system of imaging spectrometer based on linear variable filter. The imaging principle, optical specifications, optical design, imaging performance analysis and tolerance analysis are illustrated. The optical system with a focal length of 100 mm, F-number 4 and 43 field of view in the spectrum range of 4001000 nm is presented, and excellent image quality is achieved. The system can obtain the multi-spectral images of eight bands with a spatial resolution of 21.5 m and a swath width of 320 km at the altitude of 500 km. Compared with the existing nighttime light remote sensors, our system possesses the advantages of high spatial and high spectral resolution, wide spectrum band and wide swath width simultaneously, greatly making up for the shortage of the present systems. The result of tolerance analysis shows our system satisfy the requirements of fabrication and alignment. 2021 by the authors. Licensee MDPI, Basel, Switzerland.
URL标识	查看原文
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/65489]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. Xie,C. Liu,S. Liu and X. Fan. Optical design of imaging spectrometer based on linear variable filter for nighttime light remote sensing[J]. Sensors,2021,21(13).
APA	Y. Xie,C. Liu,&S. Liu and X. Fan.(2021).Optical design of imaging spectrometer based on linear variable filter for nighttime light remote sensing.Sensors,21(13).
MLA	Y. Xie,et al."Optical design of imaging spectrometer based on linear variable filter for nighttime light remote sensing".Sensors 21.13(2021).