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UV-VUV spectral irradiance responsivity calibration for space remote sensing spectroradiometer (EI CONFERENCE) 会议论文  OAI收割
Advanced Materials and Devices for Sensing and Imaging III, November 12, 2007 - November 14, 2007, Beijing, China
作者:  
Yu H.
收藏  |  浏览/下载:40/0  |  提交时间:2013/03/25
In order to overcome the irradiance responsivity calibration troubles caused by the weak response of most spectral radiometers in ultraviolet band and poor ratio of signal to noise  and to meet special calibration condition for some remote sensing spectroradiometers in space  a spectral irradiance responsivity calibration unit based on parallel light illumination mode is established  it is composed of a 150W deuterium lamp and a spherical mirror. The calibration unit gets the output standard value of spectral irradiance by irradiance transfer  this way avoids the spectral reflectance measurement difficulty of the spherical mirror. A flight spectral radiometer model used for space remote sense was calibrated in range from 160nm to 300nm  the calibration error of spectral irradiance responsivity is 4.7%. Some factors which contribute to calibration uncertainties are discussed.  
Improved best tradeoff for high-resolution image fusion based on spectral reflection function 会议论文  OAI收割
International Conference on Earth Observation Data Processing and Analysis, ICEODPA,, Wuhan, China, December 28, 2008 - December 30,2008
Wang, Zhongwu; Zhao, Zhongming
收藏  |  浏览/下载:32/0  |  提交时间:2014/12/07
This paper extended the best tradeoff fast intensity-hue-saturation (BTFIHS) fusion to a more general model. Firstly  based-on the methods proposed by previous researches  we integrated injecting strategy of spatial detail information into the fusion model and also adopted the idea of BTFIHS to keep the intensity unchanged with the corresponding pixel in panchromatic (PAN) image  while the hue and saturation of every pixel using BTFIHS were equal to them using tradeoff fast intensity-hue-saturation (TFIHS). Then we got a general formula of the improved best tradeoff for high-resolution image fusion based-on getting injecting parameter by spectral reflection function (SRF). At last  several experiments were carried on to analysis and discuss the quality of the new methods compared with their originals. Results show that the new method could yield a "true" high-resolution multispectral (MS) image  with vast improvement in blue band and nearly 3.3% improvement in Q4 for all bands. 2008 SPIE.  
Hyperspectral indices for leaf and pixel chlorophyll estimation in open-canopy tree - art. no. 675222 会议论文  OAI收割
15th International Conference on Geoinformatics, Nanjing, PEOPLES R CHINA, MAY 25-27, 2007
Zhao; Jin; Chen; Xi; Japper; Guli; Chang; Huaitian; Ma; Zhongguo; Duan; Yuanbin
收藏  |  浏览/下载:21/0  |  提交时间:2011/08/23
Analysis of Gas Radiative Transfer Using Box Model and Its Comparison with Gray Band Approximation 期刊论文  OAI收割
JOURNAL OF THERMAL SCIENCE, 2003, 卷号: 12, 期号: 1, 页码: 82,88
Yuying Liu; Xinxin Zhang
收藏  |  浏览/下载:17/0  |  提交时间:2013/03/11
Lattice and spin polarons in two dimensions 期刊论文  OAI收割
JOURNAL OF CHEMICAL PHYSICS, 2000, 卷号: 113, 期号: 16, 页码: 6502-6508
作者:  
Zhao, Y;  Chen, GH;  Yu, L;  Zhao, Y , Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China.
  |  收藏  |  浏览/下载:34/0  |  提交时间:2012/08/29