国家自然科学基金(10873024)

作品数：4被引量：6H指数：2
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相关期刊：《Science China(Physics,Mechanics & Astronomy)》《Research in Astronomy and Astrophysics》更多>>
相关主题：HIGH-CONTRASTCORONAGRAPHIMAGINGMETHODSIMAGE_PROCESSING更多>>
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An active coronagraph using a liquid crystal array for exoplanet imaging:principle and testing被引量：1
《Research in Astronomy and Astrophysics》2012年第5期591-600,共10页Xi Zhang De-Qing Ren Yong-Tian Zhu Jiang-Pei Dou 
supported by the "Strategic Priority Research Program" of the Chinese Academy of Sciences(Grant No.XDA04070600);the National Natural Science Foundation of China(Grant Nos.11003031 and 10873024);as well as the National Astronomical Observatories' Special Fund for Astronomy-2009;Part of the work described in this paper was carried out at California State University Northridge,with support from the National Science Foundation under Grant ATM-0841440
High-contrast imaging coronagraphs, used for the detection of exoplanets, have always adopted passive coronagraph optical components. It is therefore impossible to actively optimize the coronagraphs to achieve their b...
关键词：instrumentation： coronagraph liquid crystal array - techniques high-contrast imaging exoplanet detection 
An iterative wavefront sensing algorithm for high-contrast imaging systems被引量：5
《Research in Astronomy and Astrophysics》2011年第2期198-204,共7页Jiang-Pei Dou 1,2,De-Qing Ren 1,2,3 and Yong-Tian Zhu 1,2 1 National Astronomical Observatories/Nanjing Institute of Astronomical Optics & Technology,Chinese Academy of Sciences,Nanjing 210042,China 2 Key Laboratory of Astronomical Optics & Technology,Nanjing Institute of Astronomical Optics & Technology,Chinese Academy of Sciences,Nanjing 210042,China 3 Physics & Astronomy Department,California State University Northridge,18111 Nordhoff Street,Northridge,California 91330-8268,USA 
funded by the National Natural Science Foundation of China (Grant Nos.11003031 and 10873024);supported by the National Astronomical Observatories’ Special Fund for Astronomy;Part of the workdescribed in this paper was carried out at California State University Northridge,with support from the National Science Foundation under grant ATM-0841440
Wavefront sensing from multiple focal plane images is a promising technique for high-contrast imaging systems.However,the wavefront error of an optics system can be properly reconstructed only when it is very small.Th...
关键词：techniques： image processing -- methods： numerical -- planetarysystems 
High-contrast coronagraph for ground-based imaging of Jupiter-like planets被引量：2
《Research in Astronomy and Astrophysics》2010年第2期189-198,共10页Jiang-Pei Dou De-Qing Ren Yong-Tian Zhu 
supported by the National Natural Science Foundation of China (NSFC) (Grant No. 10873024)
We propose a high-contrast coronagraph for direct imaging of young Jupiter-like planets orbiting nearby bright stars. The coronagraph employs a step- transmission filter in which the intensity is apodized with a finit...
关键词：instrumentation： high angular resolution- methods： laboratory numer- ical -- techniques： coronagraphy apodization -- planetary systems 
Focal plane wave-front sensing algorithm for high-contrast imaging被引量：1
《Science China(Physics,Mechanics & Astronomy)》2009年第8期1284-1288,共5页DOU JiangPei1,2,3,REN DeQing1,2,4,ZHU YongTian1,2 & ZHANG Xi1,2,3 1 National Astronomical Observatories/Nanjing Institute of Astronomical Optics & Technology,Chinese Academy of Sciences,Nanjing 210042,China 2 Key Laboratory of Astronomical Optics & Technology,Nanjing Institute of Astronomical Optics & Technology,Chinese Academy of Sciences,Nanjing 210042,China 3 Graduate University of Chinese Academy of Sciences,Beijing 100049,China 4 Physics & Astronomy Department,California State University Northridge,18111 Nordhoff Street,Northridge,California 91330-8268,USA 
Supported by the National Natural Science Foundation of China (Grant No. 10873024)
High-contrast imaging provided by a coronagraph is critical for the direction imaging of the Earth-like planet orbiting its bright parent star.A major limitation for such direct imaging is the speckle noise that is in...
关键词：HIGH-CONTRAST IMAGING multi-image ALGORITHM SPECKLE nulling technique WAVE-FRONT SENSING 
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