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REFLECTOMETER: 作品数：24被引量：23H指数：2; 导出分析报告; 相关领域：电子电信自动化与计算机技术更多>>; 相关作者：周明伟付广伟更多>>; 相关机构：燕山大学中国石化更多>>; 相关期刊：《Chinese Physics Letters》《中国新通信》《Photonic Sensors》《Chinese Optics Letters》更多>>; 相关基金：国家自然科学基金中国博士后科学基金更多>>

A synthetic diagnostics platform for microwave imaging diagnostics in tokamaks: 《Plasma Science and Technology》2024年第3期38-45,共8页李子涵杨尚川徐新航张立夫渠承明李诚普庄革谢锦林; supported by the National Magnetic Confinement Fusion Energy Program of China(No.2019YFE03020001);the Collaborative Innovation Program of Hefei Science Center,CAS(No.2021HSC-CIP010);the Fundamental Research Funds for the Central Universities。; Interpreting experimental diagnostics data in tokamaks,while considering non-ideal effects,is challenging due to the complexity of plasmas.To address this challenge,a general synthetic diagnostics(GSD)platform has bee...; 关键词：synthetic diagnostics tokamak plasmas microwave imaging diagnostics microwave imaging reflectometer electron cyclotron emission imaging

Numerical simulation of ultrashort-pulse reflectometry(USPR)on EAST: 《Plasma Science and Technology》2023年第12期105-114,共10页俞潇烽陈冉李小良朱逸伦 Calvin W DOMIER 阮行磊黄泰豪郭晋林子钰徐国盛毛世峰 Neville C LUHMANN JR 叶民友; supported by the National Magnetic Confinement Fusion Energy R&D Program of China(No.2019YFE03030004);National Natural Science Foundation of China(No.12005144)。; The microwave reflectometer is a popular non-intrusive plasma density diagnostic instrument on tokamaks that provides centimeter and millisecond level resolution.The ultrashort-pulse reflectometer(USPR)achieves plasma...; 关键词：REFLECTOMETER pedestal density profile beam mode conversion

Comparison of methods for turbulence Doppler frequency shift calculation in Doppler reflectometer: 《Plasma Science and Technology》2023年第9期42-50,共9页仲小明邹晓岚周楚刘阿娣庄革冯喜张津季佳旭范泓锐刘深王士凡高刘天史文祥兰涛李弘谢锦林毛文哲刘子奚刘万东; supported in part by the National MCF Energy R&D Program(Nos.2018YFE0311200 and 2017YFE0301204);National Natural Science Foundation of China(Nos.U1967206,11975231 and 11922513);supported by the Users with Excellence Program of Hefei Science Center CAS(No.2020HSC-UE009).; The Doppler reflectometer(DR),a powerful diagnostic for the plasma perpendicular velocity(u⊥)and turbulence measurement,has been widely used in various fusion devices.Many efforts have been put into extracting the Do...; 关键词：perpendicular velocity measurement Doppler reflectometer Doppler shift

Comparative analysis of temporal-spatial and time-frequency features for pattern recognition of φ-OTDR被引量：1: 《Chinese Optics Letters》2023年第4期1-8,共8页孟凡然张文祥刘晓军刘飞周娴; supported by the Fundamental Research Funds for the Central Universities(No.FRF-TP-20-067A1Z)。; The phase-sensitive time-domain reflectometer [φ-OTDR] has been popularly used for events detection over a long period of time.In this study,the events classification methods based on convolutional neural networks [C...; 关键词：phase-sensitive time-domain reflectometer convolutional neural network temporal-spatial images timefrequency images

Responses of calcareous sand foundations to variations of groundwater table and applied loads被引量：5: 《Journal of Rock Mechanics and Geotechnical Engineering》2022年第4期1266-1279,共14页Dingfeng Cao Sanjay Kumar Shukla Linqing Yang Chengchao Guo Jinghong Wu Fuming Wang; support provided by the National Natural Science Foundation of China(Grant No.41907244);China Postdoctoral Science Foundation(Grant No.2019M653180);the Project of the Key Laboratory of Soft Soil and Environmental Geotechnical Ministry of Education(Grant No.2019P05)is gratefully acknowledged.; The long-term settlement of calcareous sand foundations caused by daily periodic fluctuations has become a significant geological hazard,but effective monitoring tools to capture the deformation profiles are still rar...; 关键词：Distributed fiber optic sensing(DFOS) Calcareous sand Optical fiber Optical frequency domain reflectometer (OFDR) Soil foundation settlement

Long dynamic range spread spectrum optical domain reflectometer被引量：1: 《Optoelectronics Letters》2021年第11期651-655,共5页ZHANG Fang ZHANG Hongling QI Yuefeng LI Wei; supported by the National Natural Science Foundation of China (No.61735011);the Science and Technology Research Project of Hebei University (No.QN2017141);the Key Research and Development Program of Hebei Province (No.19251703D)。; The performance of an optical time domain reflectometer(OTDR) is significantly improved using spread spectrum technology. The concept of spread spectrum OTDR(SSOTDR) is proposed, the theoretical basis and simulation r...; 关键词：SIMULATION DOMAIN Long dynamic range spread spectrum optical domain reflectometer

Design of a variable frequency comb reflectometer system for the ASDEX Upgrade tokamak: 《Plasma Science and Technology》2020年第6期8-14,共7页T HAPPEL W KASPAREK P HENNEQUIN K HÖFLER C HONORÉ the ASDEX Upgrade Team; funding from the Euratom research and training programme 2014-2018 and2019-2020 under grant agreement No.633053。; Comb reflectometers offer the advantage of measuring several radial positions in plasma simultaneously.This allows for the investigation of fast timescales during L-H transitions,I-phases,I-mode bursts,transients duri...; 关键词：REFLECTOMETRY microwaves plasma diagnostic REFLECTOMETER TURBULENCE

In-port-plug transmission line design of the ITER plasma position reflectometer: 《Plasma Science and Technology》2020年第6期15-20,共6页J MARTÍNEZ-FERNÁNDEZ ÁCAPPA A SIMONETTO T ESTRADA E DE LA LUNA E J BLANCO; partially funded by the Ministeriode Ciencia,Innovaciony Universidades of Spain under project FIS2017-88892-P;Fusion for Energy under Specific Grant Agreement F4E-FPA-375-SG05。; This work describes the microwave design of the transmission line housed in the in-port-plug region of the ITER plasma position reflectometer(PPR).The design of the components of the inport-plug reflectometers(located...; 关键词：REFLECTOMETRY microwave technology ITER diagnostic

Investigation of turbulence rotation in the SOL and plasma edge of W7-X for different magnetic configurations: 《Plasma Science and Technology》2020年第6期21-31,共11页A KRÄMER-FLECKEN X HAN M OTTE G ANDA S A BOZHENKOV D DUNAI G FUCHERT J GEIGER O GRULKE E PASCH E R SCOTT E TRIER M VÉCSEI T WINDISCH S ZOLETNIK W7-X Team; funding from the Euratom research and training program 2014-2018 and2019-2020 under grant agreement no.633053。; The W7-X stellarator is optimized with respect to neoclassical transport.Therefore turbulent transport plays an important role.It is equipped with an inertial cooled graphite divertor which intersects the island chain...; 关键词：STELLARATOR correlation reflectometer turbulence rotation scrape-off layer island divertor

Preliminary Study of the Magnetic Perturbation Effects on the Edge Density Profiles and Fluctuations Using Reflectometers on EAST: 《Plasma Science and Technology》2016年第9期879-883,共5页GAO Yu WANG Yumin ZHANG Tao ZHANG Shoubiao QU Hao MAN Xiang WEN Fei KONG Defeng HUANG Canbin CAI Jianqing SUN Youwen LIANG Yunfeng GAO Xiang EAST Team; supported by the National Magnetic Confinement Fusion Science Program of China(Nos.2014GB106000,2014GB106003 and2015GB110001);National Natural Science Foundation of China(Nos.11275234,11305215,11305208,11405214 and 11505221); The resonant magnetic perturbation （RMP） coils have been successfully designed and installed on the Experimental Advanced Superconducting Tokamak （EAST）. Using the reflectometer systems, the density profile and th...; 关键词：magnetic perturbations microwave reflectometer density profile densityfluctuation TOKAMAK

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