INTERFEROMETRY

作品数:238被引量:402H指数:9
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Suppression of seismic surface waves based on adaptive weighted super-virtual interferometry被引量:1
《Science China Earth Sciences》2016年第11期2179-2188,共10页AN ShengPei HU TianYue 
supported by the National Basic Research Program of China (Grant No. 2013CB228602);the National Science and Technology Major Project of China (Grant No. 2016ZX05004003-002);the National High Technology Research and Development Program of China (Grant No. 2013AA064202)
For land seismic surveys, the surface waves are the dominant noises that mask the effective signals on seismograms.The conventional methods isolate surface waves from the effective signals by the differences in freque...
关键词:Heterogeneous media Near surface Dispersive surface waves Interferometry Correlation coefficient 
Design of refractive/diffractive hybrid optical elements for beam shaping with large diffraction pattern被引量:4
《Chinese Optics Letters》2016年第3期64-67,共4页曲卫东 顾华荣 谭峭峰 
partially supported by the National Key Basic Research Program of China(No.2013CB329202);the National Scientific Equipment Development SpecialFoundation of China(No.2011YQ03013401);the National Natural Science Foundation of China(No.61475021);the Beijing Natural Science Foundation(No.4152015)
Diffractive optics is an important technique for beam shaping with high light efficiency and strong diffraction pattern flexibility. Since the diffraction angle is limited by the unit size of the diffractive optical e...
关键词:Diffraction patterns Diffractive optical elements INTERFEROMETRY Lenses LIGHT Light modulators 
Auto-pick first breaks with complex raypaths for undulate surface conditions被引量:1
《Applied Geophysics》2015年第1期93-100,123,共9页安圣培 胡天跃 崔永福 段文胜 彭更新 
supported by the National Basic Research Program of China(No.2013CB228602);the National Science and Technology Major Project of China(No.2011ZX05004-003);the National High Tech Research Program of China(No.2013AA064202)
First-break picking is the key step in seismic data processing for surveying undulate surfaces, and directly infl uences the precision of near-surface modeling and effects of static corrections. The current first-brea...
关键词:3D undulate surface INTERFEROMETRY first breaks scattered waves multidomain 
Evaluation of PS-DInSAR technology for subsidence monitoring caused by repeated mining in mountainous area被引量:4
《Transactions of Nonferrous Metals Society of China》2014年第10期3309-3315,共7页刘振国 卞正富 雷少刚 刘东烈 Andrew SOWTER 
Project(51174191)supported by the National Natural Science Foundation of China;Project(2013CB227904)supported by the National Basic Research Program of China;Project(2012QNB09)supported by Fundamental Research Funds for the Central Universities,China
The high resolution Terra SAR-X dataset was employed with DIn SAR and persistent scatterer interferometry(PSI) technique for subsidence monitoring in a mountainous area. For DInS AR technique, the generally used SRT...
关键词:DIn SAR GEOCODING persistent scatterer interferometry(PSI) repeated excavation corner reflector subsidence monitoring 
A sequence pulse counting method for shape measurement in dual-beam speckle interferometry
《Science China(Physics,Mechanics & Astronomy)》2011年第4期640-646,共7页LIU Liang LI XiDe 
supported by the National Natural Science Foundation of China(Grants Nos. 10972113,10732080);the National Basic Research Program of China(Grant Nos. 2007CB936803,2010CB631005);SRFDP(Grant No. 20070003053)
A temporal approach to fast shape measurement is presented.In principle,the rotational object method is used in combination with the sequence pulse counting method (SPCM) to determine the height of the object through ...
关键词:shape measurement profilometry temporal speckle pattern interferometry phase measurement 
LOW FLYING HEIGHT MEASUREMENT WITH MULTI-WAVELENGTH INTERFEROMETRY
《Chinese Journal of Mechanical Engineering》2008年第3期108-111,共4页WANG Wei LAI Wuxing SHI Tielin TAO Wei CHENG Xinjian 
National Basic Research Program of China(973 Program,No. 2003CB716207);National Natural Science Foundation of China(No.50775091)
A method for measurement of ultra-low flying height in head-disk spacing is described. Three different wavelengths are selected out from white light by filters to measure the spacing simultaneously. Besides solving th...
关键词:Flying height measurement Multi-wavelength interferometry Incident bandwidth 
A New Approach of Quantum Mechanics for Neutron Single-Slit Diffraction被引量:6
《Chinese Physics Letters》2007年第7期1813-1816,共4页吴向尧 杨景海 刘晓静 王丽 刘兵 范希会 郭义庆 
Phenomena of electron, neutron, atomic and molecular diffraction have been studied in many experiments, and these experiments are explained by many theoretical works. We study neutron single-slit diffraction with a qu...
关键词:INTERFEROMETRY 
Satellite SAR interferometric observations of displacements associated with urban subsidence in Suzhou, Eastern China被引量:13
《Progress in Natural Science:Materials International》2002年第10期798-800,共4页WANG Chao, ZHANG Hong, LIU Zhi, CHENG Suozhong and LU Guonian(1. LARSIS, Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China 2. Department of Geography, Nanjing Normal University, Nanjing 210097, China) 
Supported by the Major State Basic Research Development Program of China (Grant No. G1998040703) ; the Chinese Academy of Sciences (KZCX2-309); The ERS-1/2 SAR data was provided by ESA for the ERS project (ERS A03-374).
SAR interferometry (InSAR) has a high potential for surface displacement mapping in the range from millimeter to meter. In this paper the potential of ERS-1/2 SAR interferometry for mapping subtle land subsidence has ...
关键词:SAR interferometry  LAND subsidence  Suzhou. 
A Fast Melting Release Method in Free-Fall Equivalence Principle Test
《Chinese Physics Letters》2001年第2期172-174,共3页WU Zi-Gang WANG Dian-Hong LUO Jun ZHOU Ze-Bing NIE Yu-Xin ZHANG Yuan-Zhong 
Supported by the Ministry of Science and Technology of China under Grant No.95-Yu-34;the National Natural Science Foundation of China under Grant No.19835040.
A fast melting release method for the free-fall equivalence principle test using laser interferometry is discussed.The primary experiment result shows that the uncertainty of the differential release time could be con...
关键词:RELEASE satis INTERFEROMETRY 
Seismic Noise Effect on Equivalence Principle Test Using Free-Fall Interferometry被引量:2
《Chinese Physics Letters》2001年第1期10-12,共3页ZHOU Ze-Bing LUO Jun YAN Qin ZHANG Yuan-Zhong NIE Yu-Xin 
Supported by the Ministry of Science and Technology of China under Grant No.95-Yu-34;the National Natural Science Foundation of China under Grant No.19835040。
A simple interferometer was used to monitor the seismic noise effect on the equivalence principle test using the free-fall interferometric method.The experimental result showed that this effect was belowλ/100,whereλ...
关键词:SEISMIC SEISMIC EFFECT 
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