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CAS IR Grid
机构
长春光学精密机械与物... [3]
自动化研究所 [1]
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OAI收割 [4]
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会议论文 [3]
期刊论文 [1]
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2012 [1]
2011 [2]
2006 [1]
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Efficient Clustering Aggregation Based on Data Fragments
期刊论文
OAI收割
IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART B-CYBERNETICS, 2012, 卷号: 42, 期号: 3, 页码: 913-926
作者:
Wu, Ou
;
Hu, Weiming
;
Maybank, Stephen J.
;
Zhu, Mingliang
;
Li, Bing
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浏览/下载:39/0
  |  
提交时间:2015/08/12
Clustering aggregation
comparison measure
computational complexity
data fragment
fragment-based approach
mutual information
point-based approach
Technology on fabrication of precise SiC aspherical mirror (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Materials and Products Manufacturing Technology, ICMPMT 2011, October 28, 2011 - October 30, 2011, Chengdu, China
Zhang Z.
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浏览/下载:26/0
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提交时间:2013/03/25
This paper represents a technique to produce the large size optical aspherical mirror by using reaction-bonded silicon carbide to meet the material requirements of the space used mirrors
based on the characters comparison of all types mirror material. Techniques are described in this paper
including the bonding procedure of silicon carbide to form a mirror shape
the CCOM technology for aspheric grinding
polishing on a home-developed tool -FSGJ-2
and the aspheric profilometry. A specialized Offner Null lens is also developed to measure the aspherical mirror with laser interferometer. With the technology depicted in the paper
a 502mm 298 mm off-axis SiC aspherical mirror is successfully made with a surface accuracy better than 1/50rms
the final result meets the design requirement. (2011) Trans Tech Publications.
The research of the accurate measure of static transfer function for the TDI CCD camera (EI CONFERENCE)
会议论文
OAI收割
3rd International Photonics and OptoElectronics Meetings, POEM 2010, November 2, 2010 - November 5, 2010, Wuhan, China
Guo-Ning L.
;
Long-Xu J.
;
Jian-Yue R.
;
Wen-Hua W.
;
Shuang-Li H.
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浏览/下载:25/0
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提交时间:2013/03/25
In the test course of static transfer function of TDI CCD camera
because of the influence that gets environmental and artificial etc. factor
the value of static transfer function measured at any time is between unceasing fluctuation
so
make accuracy reduce. To solve this problem
a kind of accurate measurement technique of static transfer function is put forward. First
before carrying out the measure of static quiet of transfer function
the best test point of transfer function of the TDI CCD camera must be determined
it is parallel to guarantee the rectangle target surface of parallel optical pipe and camera focal plane maintenance parallel
and again guarantee target strip in rectangle target and TDI CCD in camera focal plane maintenance vertical. TDI CCD catches rectangle target image
per 1000 lines of target mark image as a measures sample of static transfer function
exclude because of atmosphere tremble twisted
vague rectangle target mark image
retain 500 distinct and steady target mark image as measure sample set. Then
calculate the static transfer function of each measure sample respectively
take the average of all static quiet transfer function in measure sample set as the static transfer function of camera. Finally
the measure of the static transfer function for TDI CCD camera makes error analysis. Experimental results indicate that the value of the static transfer function of TDI CCD camera measured with this kind of method is 0.2923
with before measurement technique comparison
the value of static transfer function has raised 0.02
makes the accuracy of the measure of static transfer function have gotten raising.
The Simulation measurement experiment and calibration for Solar Total Irradiance Monitor on board (EI CONFERENCE)
会议论文
OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
Yupeng W.
;
Wei F.
;
Bingxi Y.
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浏览/下载:37/0
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提交时间:2013/03/25
STIM (Solar Total Irradiance Monitor) can be used on sun-synchronous polar orbit weather satellites to measure the total solar irradiance. It contains three independent and identical wide view absolute radiometers. They are mounted on the satellite in an angle which ensure the sun scan over the field of view of the absolute radiometers. This measurement method doesn't need the instrument tracking the sun but the sun scan over the field of view of the absolute radiometers in each orbit cycle. The paper presents the measurement method of simulation for solar irradiance measurement and calibration by mounting the instrument on a two-axis rotation table. By controlling the rotation angle velocity of the instrument in the meridian direction being the same as that of the weather satellite's on orbit
we can measure the solar irradiance when the sun scan over the field of view of the absolute radiometers to simulate the onboard state. And we have operated the measurement with the prototype of STIM. The SIAR-1 is traceable to WRR and serves as a transfer standard. So simultaneous comparison measurements between SIAR-1 and each of the three wide view absolute radiometers are measured to provide calibration corrections to the instrument. And we have a further study at the influence of stray light to the measurement results. This paper presents the method of simulation experiment and calibration for solar irradiance measurement with Solar Total Irradiance Monitor on board.