中国科学院机构知识库网格
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噪声等效光谱辐亮度定标系统的性能测评 期刊论文  OAI收割
红外与激光工程, 2022, 卷号: 51
作者:  
黄思佳;  袁银麟;  翟文超;  郑小兵;  雷正刚
  |  收藏  |  浏览/下载:21/0  |  提交时间:2023/11/10
Electronic system design of ultraviolet ozone vertical profile probe for aerography satellite (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Song K.; Wang S.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
The design of ultraviolet ozone vertical profile probe is illustrated and the electronic system is introduced in detail. The device is a compact  high precision  ultraviolet-vacuum  ultraviolet spectral radiometer  and is used to measure atmospheric solar backscattering spectral radiance and solar spectral irradiance. Noise of the system is analyzed and Numeric accumulation and synchronous demodulation was used to decrease the noise and the zero-drift of the instrument. The solar irradiance at altitude 830 km in 160-400 nm and the backscattering solar spectral radiance in the ultraviolet ozone absorption band at 12 wavelengths from 250 nm to 340 nm are obtained. Test results on orbit show that all the requested function is met successfully and the performance is stable. 2011 IEEE.  
Level 0 and level 1 data processing for a type of hyper-spectral imager (EI CONFERENCE) 会议论文  OAI收割
2009 International Conference on Optical Instruments and Technology, OIT 2009, October 19, 2009 - October 21, 2009, Shanghai, China
Li X.; Yan C.
收藏  |  浏览/下载:79/0  |  提交时间:2013/03/25
Hyper-spectral imaging (HSI) is a kind of optical remote sensor that can simultaneously obtain spatial and spectral information of ground targets. We are now designing a data processing system for a type of space-borne push-broom HSI  then it performs radiometric and spectral calibration based on the ground calibration results and onboard calibration collection. The detailed algorithms for bad pixel replacement  which has 128 spectral channels covering the spectral range from 400nm to 2500nm. With its large amount of spectral channels  radiometric and spectral calibration were presented. After processing  the HSI collects large volume of spectral imaging data need to be efficiently and accurately processed and calibrated. In this paper  the digital numbers downlinked from the spacecraft can be converted into at-sensor absolute spectral radiance of ground targets  the detailed Level 0 and Level 1 data processing steps for the HSI were presented. The Level 0 processing refers to a set of tasks performed on the data downlinked from the spacecraft  thus providing accurate quantified spectral imaging data for various applications. 2009 SPIE.  including decoding to extract science data  separating the science data into files corresponding to different tasks (e.g. ground imaging  dark imaging  and onboard calibration)  checking data integrity and instrument settings  data format conversion  and Level 0 files creation. The Level 1 processing performs several steps on Level 0 data. Firstly  it corrects the image artifacts (mostly the SWIR smear effect)  subtracts the dark background  and performs the bad pixel replacement according to the prelaunch measurement  
Spectral composition of irradiation regulate's the cell growth and flavonoids biosynthesis in callus cultures of Saussurea medusa Maxim 期刊论文  OAI收割
PLANT GROWTH REGULATION, 2007, 卷号: 52, 期号: 3, 页码: 259-263
作者:  
Guo, Bin;  Liu, Yong-Gang;  Yan, Qiong;  Liu, Chun-Zhao
收藏  |  浏览/下载:27/0  |  提交时间:2013/10/15
Spectral composition of irradiation regulate's the cell growth and flavonoids biosynthesis in callus cultures of saussurea medusa maxim 期刊论文  iSwitch采集
Plant growth regulation, 2007, 卷号: 52, 期号: 3, 页码: 259-263
作者:  
Guo, Bin;  Liu, Yong-Gang;  Yan, Qiong;  Liu, Chun-Zhao
收藏  |  浏览/下载:44/0  |  提交时间:2019/05/10
A vicarious calibration for thermal infrared bands of TERRA-MODIS sensor using a new calibration test site-lake Dali, China 会议论文  OAI收割
Igarss: 2007 Ieee International Geoscience and Remote Sensing Symposium, Vols 1-12: Sensing and Understanding Our Planet, New York
Zhu Li; Gu Xingfa; Zhang Yuxiang; Yu Tao; Chen Liangfu; Gong Hui; Huai Hongyan
收藏  |  浏览/下载:27/0  |  提交时间:2014/12/07