REFLECTOMETRY

作品数:53被引量:59H指数:4
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相关领域:自动化与计算机技术更多>>
相关作者:曹波贾生尧童仁园李青张涛更多>>
相关机构:中国计量学院天津工业大学四川大学中国科学院等离子体物理研究所更多>>
相关期刊:《International Journal of Ophthalmology(English edition)》《Open Journal of Ophthalmology》《南京市政》《Chinese Physics Letters》更多>>
相关基金:国家自然科学基金中国博士后科学基金国家科技支撑计划国家高技术研究发展计划更多>>
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Drought-induced desiccation cracking in surface soil:Two-dimensional characterization by FEM-OFDR framework
《Science China(Technological Sciences)》2025年第3期278-297,共20页Jinjian XU Chaosheng TANG Zhaojun ZENG Lin LI Junzheng ZHANG Tengfei GAO Bin SHI 
supported by the National Natural Science Foundation of China(Grant Nos.41925012,42230710,42172290);the Natural Science Foundation of Jiangsu Province(Grant No.BK20211087);the Key Laboratory Cooperation Special Project of Western Cross Team of Western Light,CAS(Grant No.xbzg-zdsys-202107);the China Scholarship Council(Grant No.202206190069);the Fundamental Research Funds for the Central Universities。
Drought-induced desiccation cracking can trigger several weakening mechanisms in surface soils,potentially precipitating instability and failure of slopes and earthen structures.To investigate the potential applicatio...
关键词:soil desiccation cracking distributed fibre optical sensing optical frequency domain reflectometry finite element method 2D crack patterns monitoring mechanism 
Long-range distributed vibration sensing based on internal-modulation OFDR
《Nanotechnology and Precision Engineering》2024年第4期8-15,共8页Yaoli Yue Jing Zeng Zhenyang Ding Teng Zhang Haohan Guo Tiegen Liu 
supported by the 34th Research Institute of CETC Funding(Grant No.K134002021S604);the New Technology Research University Cooperation Project of the 34th Research Institute of CETC(Grant No.2021-1200-05-001900).
Presented here is long-range distributed vibration sensing based on internal-modulation optical frequency domain reflectometry(OFDR).In the proposed system with internal modulation,a silicon-based photonic-chip laser i...
关键词:Distributed optical fiber sensing Distributed vibration sensing Optical frequency domain reflectometry Internal modulation 
First results of turbulence investigation on Globus-M2 using radial correlation Doppler reflectometry
《Plasma Science and Technology》2024年第10期49-55,共7页A.PONOMARENKO A.YASHIN V.GUSEV E.KISELEV G.KURSKIEV V.MINAEV Y.PETROV N.SAKHAROV P.SHCHEGOLEV E.TKACHENKO N.ZHILTSOV 
the financial support of the Ministry of Science and Higher Education of the Russian Federation in the framework of the State Contract in the Field of Science(No.FSEG-2024-0005)。
The first results of investigation of the turbulence structure using Doppler backscattering(DBS)on the Globus-M2 tokamak are presented.A one-channel DBS system with a variable probing frequency within the 18–26 GHz r...
关键词:TOKAMAK TURBULENCE Doppler backscattering correlation reflectometry 
A novel global grid model for soil moisture retrieval considering geographical disparity in spaceborne GNSS-R
《Satellite Navigation》2024年第3期252-268,共17页Liangke Huang Anrong Pan Fade Chen Fei Guo Haojun Li Lilong Liu 
supported by Natural Science and Technology Planning Foundation of Guangxi (guikeAD23026257);the National Natural Science Foundation of China (42064002 and 42074029);and the“Ba Gui Scholars”program of the provincial government of Guangxi。
Spaceborne global navigation satellite system-reflectometry has become an effective technique for Soil Moisture(SM)retrieval.However,the accuracy of global SM retrieval using a single model is limited due to the compl...
关键词:Soil moisture(SM) Global navigation satellite system-reflectometry(GNSS-R) Cyclone GNSS(CYGNSS) Geographical disparity 
Retrieval of sea ice thickness using FY-3E/GNOS-II data
《Satellite Navigation》2024年第3期269-281,共13页Yunjian Xie Qingyun Yan 
funded by the National Natural Science Foundation of China under Grant 42001362.
Sea ice,a significant component in polar regions,plays a crucial role in climate change through its varying conditions.In Global Navigation Satellite System-Reflectometry(GNSS-R)studies,the observed surface reflectiv...
关键词:Global navigation satellite system-reflectometry Sea ice thickness Fengyun-3E GNSS occultation sounder II(FY-3E/GNOS-ll) Soil moisture ocean salinity 
Suppression of modulation-induced polarization error in spliceless open-loop fiber optic gyroscope [Invited]
《Chinese Optics Letters》2024年第7期6-11,共6页Lin Chen Peitong He Biqiang Jiang Jianlin Zhao 
supported by the National Natural Science Foundation of China(Nos.61975166,62322510,and 62375223).
The suppression of polarization cross talk in lead zirconate titanate phase modulators as a key error source has been challenging for open-loop fiber optic gyroscopes(FOGs).We developed a polarization-diversity optica...
关键词:fiber optic gyroscope inline wave plate optical frequency domain reflectometry polarization-mode converter 
Photoionisation detection of a single Er^(3+) ion with sub-100-ns time resolution
《National Science Review》2024年第4期32-39,共8页Yangbo Zhang Wenda Fan Jiliang Yang Hao Guan Qi Zhang Xi Qin Changkui Duan Gabriele G.de Boo Brett C.Johnson Jeffrey C.McCallum Matthew J.Sellars Sven Rogge Chunming Yin Jiangfeng Du 
This work was supported by Ministry of Science and Technology of the People's Republic of China through the National Key R&D Program of China(2018YFA0306600);Department of Science and Technology of Anhui Province through Anhui Initiative in Quantum Information Technologies(AHY050000);Anhui Provincial Natural Science Foundation(2108085MA15).
Efficient detection of single optical centres in solids is essential for quantum information processing, sensing and single-photon generation applications.In this work,we use radio-frequency(RF) reflectometry to elect...
关键词:single optical centres erbium ions RF reflectometry photoionisation detection 
Experimental study of core MHD behavior and a novel algorithm for rational surface detection based on profile reflectometry in EAST
《Plasma Science and Technology》2024年第3期66-75,共10页叶凯萱 周振 张涛 马九阳 王嵎民 李恭顺 耿康宁 吴茗甫 文斐 黄佳 张洋 邵林明 杨书琪 钟富彬 高善露 喻琳 周子强 向皓明 韩翔 张寿彪 李国强 高翔 the EAST Team 
supported by the Open Fund of Magnetic Confinement Laboratory of Anhui Province(No.2023 AMF03005);the China Postdoctoral Science Foundation(No.2021M703256);the Director Funding of Hefei Institutes of Physical Science,Chinese Academy of Sciences(No.YZJJ2022QN16);the National Key R&D Program of China(Nos.2022YFE03050003,2019YFE03080200,2019Y FE03040002,and 2022YFE03070004);National Natural Science Foundation of China(Nos.12075284,12175277,12275315 and 12275311);the National Magnetic Confinement Fusion Science Program of China(No.2022YFE03040001);the Science Foundation of the Institute of Plasma Physics,Chinese Academy of Sciences(No.DSJJ-2021-08)。
Microwave reflectometry is a powerful diagnostic that can measure the density profile and localized turbulence with high spatial and temporal resolution and will be used in ITER,so understanding the influence of plasm...
关键词:MHD instabilities profile reflectometry rational surface detection convolutional neural network(CNN) EAST tokamak 
Observation of Doppler shift f_(D) modulated by the internal kink mode using conventional reflectometry in the EAST tokamak
《Plasma Science and Technology》2024年第3期1-9,共9页李恭顺 张涛 耿康宁 文斐 叶凯萱 徐立清 朱翔 张学习 钟富彬 周振 杨书琪 周子强 喻琳 兰婷 王守信 提昂 张寿彪 刘海庆 李国强 高翔 the EAST Team 
supported by the National Key R&D Program of China(Nos.2022YFE03050003,2022YFE03020004,2019YFE03080200 and 2022YFE03070004);National Natural Science Foundation of China(Nos.12275315,11875289,12175277 and 11975271);partly supported by the Youth Science and Technology Talents Support Program(2020)by Anhui Association for Science and Technology(No.RCTJ202009);the Science Foundation of Institute of Plasma Physics,Chinese Academy of Sciences(No.DSJJ2021-08);the China Postdoctoral Science Foundation(No.2021M703256);the Director Funding of Hefei Institutes of Physical Science,Chinese Academy of Sciences(No.YZJJ2022QN16)。
In this paper we present a new experimental observation using a conventional reflectometry technique,poloidal correlation reflectometry(PCR),in the Experimental Advanced Superconducting Tokamak(EAST).The turbulence sp...
关键词:microwave reflectometry Doppler shift internal kink mode 
Remote sensing and its applications using GNSS reflected signals:advances and prospects被引量:1
《Satellite Navigation》2024年第1期10-51,共42页Shuanggen Jin Adriano Camps Yan Jia Feng Wang Manuel Martin-Neira Feixiong Huang Qingyun Yan Shuangcheng Zhang Zhongyu Li Komi Edokossi Dongkai Yang Zhiyu Xiao Zhongmin Ma Weihua Bai 
supported by the Henan International Science and Technology Cooperation Key Project(Grant No.241111520700);Strategic Priority Research Program Project of the Chinese Academy of Sciences(Grant No.XDA23040100).
The Global Navigation Satellite Systems(GNSS),including the US’s GPS,China’s BDS,the European Union’s Galileo,and Russia’s GLONASS,offer real-time,all-weather,any-time,anywhere and high precision observations by t...
关键词:GNSS REFLECTOMETRY Remote sensing Environmental change 
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