中国科学院机构知识库网格系统: 检索

A Priori Land Surface Reflectance Synergized With Multiscale Features Convolution Neural Network for MODIS Imagery Cloud Detection 期刊论文 OAI收割
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2023, 卷号: 16, 页码: 3294-3308
作者: Ma, Nan; Sun, Lin; Zhou, Chenghu; He, Yawen; Dong, Chuanxiang

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收藏 | 浏览/下载：13/0 | 提交时间：2023/10/09

Cloud detection difference-based samples land surface reflectance (LSR) dataset moderate resolution imaging spectrometer (MODIS) multiscale feature

Spaceborne limb hyperspectral imager for ozone profile detection 期刊论文 OAI收割
Optics Express, 2019, 卷号: 27, 期号: 22, 页码: 31348-31361
作者: Q.S.Xue; B.Yang; Z.T.Tian; F.P.Wang; X.N.Luan

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收藏 | 浏览/下载：33/0 | 提交时间：2020/08/24

imaging spectrometer,scatter measurements,system-design,o-3 profiles,resolution,Optics

The first validation of the precipitable water vapor of multisensor satellites over the typical regions in China 期刊论文 OAI收割
REMOTE SENSING OF ENVIRONMENT, 2018, 卷号: 206, 期号: 0, 页码: 107-122
作者: Xin, JY (Xin, Jinyuan); Shi, FL (Shi, Fanglin); Yang, LK (Yang, Leiku); Cong, ZY (Cong, Zhiyuan); Liu, RX (Liu, Ruixia)

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收藏 | 浏览/下载：50/0 | 提交时间：2019/06/13

Land-surface Temperature Vas Split-window Resolution Imaging Spectrometer Southwest China Rain-forest Aerosol Modis Retrieval Network Aeronet

2015年黄海浒苔演变特征的遥感分析 CNKI期刊论文 OAI收割
2016
作者: 陆荣洋; 申辉; 李大伟

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收藏 | 浏览/下载：0/0 | 提交时间：2024/12/18

黄海浒苔 MODIS(moderate-resolution imaging spectrometer) 遥感

Research on an Equal Wavelength Spectrum Reconstruction Method of Interference Imaging Spectrometer 期刊论文 OAI收割
spectroscopy and spectral analysis, 2016, 卷号: 36, 期号: 3, 页码: 848-852
作者: Xie Pei-yue; Yang Jian-feng; Xue Bin; Lu Juan; He Ying-hong

收藏 | 浏览/下载：24/0 | 提交时间：2016/08/18

Chang' E-1 Interference imaging spectrometer Equal wavelength spectrum resolution Spectral reconstruction Fourier transform

Compressed spectral imaging with a spectrometer 期刊论文 OAI收割
OPTICS COMMUNICATIONS, 2015, 卷号: 352, 页码: 45-48
作者: Wang, Chao; Liu, Xue-Feng; Yu, Wen-Kai; Yao, Xu-Ri; Li, Long-Zhen

收藏 | 浏览/下载：29/0 | 提交时间：2015/09/28

Spectral imaging Compressed sensing Spectrometer Spatial resolution Spectral resolution

Design of Airborne Dual Channel Ultraviolet-Visible Imaging Spectrometer with Large Field of View, Wide Spectrum, and High Resolution 期刊论文 OAI收割
spectroscopy and spectral analysis, 2013, 卷号: 33, 期号: 12, 页码: 3432-3436
作者: Hao Ai-hua; Hu Bing-liang; Bai Jia-guang; Li Li-bo; Yu Tao

收藏 | 浏览/下载：90/0 | 提交时间：2015/06/08

Large field of view Wide spectrum High resolution Ultraviolet Imaging spectrometer

Advanced astigmatism-corrected tandem Wadsworth mounting for small-scale spectral broadband imaging spectrometer (EI CONFERENCE) 会议论文 OAI收割
作者: Lin G.-Y.

收藏 | 浏览/下载：38/0 | 提交时间：2013/03/25

Tandem gratings of double-dispersion mount make it possible to design an imaging spectrometer for the weak light observation with high spatial resolution high spectral resolution and high optical transmission efficiency. The traditional tandem Wadsworth mounting is originally designed to match the coaxial telescope and large-scale imaging spectrometer. When it is used to connect the off-axis telescope such as off-axis parabolic mirror it presents lower imaging quality than to connect the coaxial telescope. It may also introduce interference among the detector and the optical elements as it is applied to the short focal length and small-scale spectrometer in a close volume by satellite. An advanced tandem Wadsworth mounting has been investigated to deal with the situation. The Wadsworth astigmatism-corrected mounting condition for which is expressed as the distance between the second concave grating and the imaging plane is calculated. Then the optimum arrangement for the first plane grating and the second concave grating which make the anterior Wadsworth condition fulfilling each wavelength is analyzed by the geometric and first order differential calculation. These two arrangements comprise the advanced Wadsworth mounting condition. The spectral resolution has also been calculated by these conditions. An example designed by the optimum theory proves that the advanced tandem Wadsworth mounting performs excellently in spectral broadband. 2012 Optical Society of America.

Snow Cover Variation and Streamflow Simulation in a Snow-fed River Basin of the Northwest Himalaya 期刊论文 OAI收割
Journal of Mountain Science, 2012, 卷号: 9, 期号: 6, 页码: 853-868
Vaibhav SHARMA; V.D. MISHRA; P.K. JOSHI

收藏 | 浏览/下载：48/0 | 提交时间：2013/04/18

Snow cover extent (SCE) Streamflow Snow Melt Runoff Model (SRM) Normalized Difference Snow Index (NDSI) Jhelum basin Moderate Resolution Imaging Spectrometer (MODIS)

Study on spectrograph for ionosphere: A broadband imaging instrument prototype for far-ultraviolet (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者: Wang S.-R.; Lin G.-Y.; Yu L.

收藏 | 浏览/下载：36/0 | 提交时间：2013/03/25

Current research on space-based exploration for the ionosphere needs more advanced technologies. Because the spectral signals in the ionosphere distributing basically in the far-ultraviolet waveband are very weak. Usual spectrometer structures and detectors such as CCD can't receive enough information. Based on this principle of atmospheric sounding the imaging spectrometer prototype for ionosphere detection application was designed to solve the problem. This prototype consists of the telescope and the imaging spectrometer. The simple structure and small number of mirrors can help higher transmission efficiency be achieved and weak signals detection be implemented. The telescope is an off-axis parabolic mirror and the spectrometer is a modified Czerny-Turner spectral imaging system. Modified Czerny-Turner spectrometer contains a spherical mirror a fixed plane grating and a toroidal mirror. By adjusting the incident angle to the collimating mirror and using toroidal mirror coma and astigmatism were corrected well. We also optimize distances between the grating to the focusing mirror and the focusing mirror to the image plane to improve disadvantages of traditional Czerny-Turner structure. Designed results demonstrate that aberrations are substantially corrected and high image quality can be obtained in broad waveband. The photon counting Wedge-Strip-Anode detector with micro-channel planes as the receiving plane is accepted for the instrument prototype. The other photon counting 2-D detector responding well for weak light such as Cross-Delay line detector and MAMA detector can also be used for detection. The calibration and performances testing system is made of a vacuum system a deuterium lamp a monochrometer and the instrument prototype. Results obtained from the experiment show that the spectral resolution is 2.4 nm and the spatial resolution is 80 m. The other calibration experiments are running. The technology of the spectrometer prototype is important for the research and applications of ionosphere remote sensing. 2011 SPIE.