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DOPPLER: 作品数：612被引量：1436H指数：14; 导出分析报告; 相关领域：电子电信医药卫生更多>>; 相关作者：赵俊荣王威琪庄良杰汪源源华扬更多>>; 相关机构：中国科学院复旦大学福建医科大学清华大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金国家高技术研究发展计划更多>>

A gas kick early detection method outside riser based on Doppler ultrasonic wave during deepwater drilling: 《Petroleum Exploration and Development》2020年第4期846-854,共9页YIN Bangtang LIN Yingsong WANG Zhiyuan SUN Baojiang LIU Shujie SUN Jinsheng HOU Jian REN Meipeng WANG Ning; Supported by Natural Science Foundation of China(51991363);National Program on Key Basic Research Project(973 Program)(2015CB251200);Changjiang Scholars and Innovative Research Team Project(IRT_14R58); The feasibility of gas kick early detection outside the riser was analyzed based on gas-liquid multiphase flow theory.Then an experimental platform for gas kick early detection based on Doppler ultrasonic wave was est...; 关键词：deepwater drilling RISER Doppler ultrasonic wave gas-liquid two phase flow signal analysis early detection of gas kick

Doppler radial velocity detection based on Doppler asymmetric spatial heterodyne spectroscopy technique for absorption lines: 《Chinese Physics B》2020年第2期183-189,共7页Yin-Li Kuang Liang Fang Xiang Peng Xin Cheng Hui Zhang En-Hai Liu; Project supported by the National Basic Research Program of China(Grant No.2014CB744204).; Doppler asymmetric spatial heterodyne spectroscopy(DASH)technique has developed rapidly in passive Doppler-shift measurements of atmospheric emission lines over the last decade.With the advantages of high phase shift ...; 关键词：DOPPLER ASYMMETRIC SPATIAL HETERODYNE spectroscopy(DASH) Doppler-shift measurement absorption line celestial autonomous navigation

利用Lunar Prospector Doppler数据解算并分析月球重力场被引量：1: 《测绘通报》2016年第1期19-22,共4页黄昆学常晓涛孙玉; 国家自然科学基金(41204007);国家高技术研究发展计划(2013AA122502);国家重点基础研究发展计划(2013CB733302);中国地质调查局地质调查工作项目(12120113019100); Doppler技术可高精度测定卫星之间的距离变化率,可以和其他技术联合用于月球卫星定轨。本文利用Lunar Prospector月球项目4个月的Doppler跟踪数据,解算了75阶次月球重力场模型。首先介绍了数据预处理方法、力模型的使用及参数设置等关...; 关键词：LUNAR PROSPECTOR 月球重力场 DOPPLER 数据解算

连续波Doppler引信扫频波辐照效应被引量：5: 《高电压技术》2015年第12期4220-4225,共6页熊久良武占成孙永卫; 国防973项目(613196);国防科技重点实验室基金(9140C87010213JB34005)~~; 为研究扫频波对连续波Doppler引信的效应规律及作用机理,开展了典型引信扫频波辐照效应试验,结合现有文献研究结论,提出了普适的扫频波辐照下连续波Doppler引信效应规律及作用机理。试验结果表明:扫频波辐照下引信会意外发火,引信临界...; 关键词：扫频波连续波Doppler引信扫频步长频点驻留时间临界干扰场强失效机理

Kramers–Kronig relation in a Doppler-broadened Λ-type three-level system: 《Chinese Physics B》2015年第11期49-53,共5页王梦芦小刚白金海裴丽娅缪兴绪高艳磊吴令安傅盘铭杨世平庞兆广王如泉左战春; supported by the National Basic Research Program of China(Grant Nos.2013CB922002 and 2010CB922904);the National Natural Science Foundation of China(Grant Nos.11274376 and 61308011);the Natural Science Foundation of Hebei Province,China(Grant No.A2015205161); We measure the absorption and dispersion in a Doppler-broadened A-type three level system by resonant stimulated Raman spectroscopy with homodyne detection. Through studying the dressed state energies of the system, i...; 关键词：electromagnetically induced transparency stimulated Raman spectroscopy Kramers-Kronig relation

Ray Tracing for Doppler Backscattering System in the Experimental Advanced Superconducting Tokamak: 《Plasma Science and Technology》2015年第9期728-732,共5页周楚刘阿娣胡建强王明远张小辉李弘俞昌旋刘万东兰涛谢锦林; supported by National Natural Science Foundation of China(Nos.10990211 and 11105146);the ITER-CN Project;973 Program of China(No.2013GB106002); The Doppler backscattering system has been widely used for turbulence measurements,and the microwave beam will be backscattered near the cut-off layer when the Brag condition is fulfilled.In tokamak,the ray-tracing co...; 关键词：Doppler backscattering system ray tracing wave number resolution pitch angle

Relationship between electromagnetically-induced transparency and Autler–Townes splitting in a Doppler-broadened system被引量：1: 《Chinese Physics B》2015年第7期244-251,共8页裴丽娅牛金艳王如泉屈一至左战春吴令安傅盘铭; Project supported by the National Natural Science Foundation of China(Grant Nos.11404330,11274376,61308011,and 11474347);the NSAF,China(Grant No.U1330117);the National Basic Research Program of China(Grant Nos.2013CB922002 and 2010CB922904);the China Postdoctoral Science Foundation(Grant No.119103S239); We study the relationship between electromagnetically-induced transparency（EIT） and Autler–Townes（AT） splitting in a cascade three-level Doppler-broadened system. By comparing the absorption spectrum with the flu...; 关键词：electromagnetically-induced transparency polarisation interference Autler–Townes splitting

Macroscopic effects in electromagnetically-induced transparency in a Doppler-broadened system: 《Chinese Physics B》2015年第1期275-281,共7页裴丽娅牛金艳王如泉屈一至吴令安傅盘铭左战春; Project supported by the National Natural Science Foundation of China(Grant Nos.10974252,11274376,60978002,and 11179041);the National Basic Research Program of China(Grant No.2010CB922904);the National High Technology Research and Development Program of China(Grant No.2011AA120102);the Natural Science Foundation of Inner Mongolia,China(Grants No.2012MS0101);the Innovation Fund of Inner Mongolia University of Science and Technology,China(Grants No.2010NC064); We study the electromagnetically-induced transparency（EIT） in a Doppler-broadened cascaded three-level system.We decompose the susceptibility responsible for the EIT resonance into a linear and a nonlinear part, and...; 关键词：electromagnetically-induced transparency polarisation interference Doppler-broadened system

液态铅铋合金流动速度场测量技术研究被引量：2: 《核科学与工程》2014年第3期348-352,共5页鲍国刚朱志强贺建高胜洒荣园 FDS团队; 国家自然科学基金重点支持项目(91026004);TER 973项目(2014GB112002;2014GB116000);中国科学院战略性先导科技专项"ADS媗变系统"项目(XDA03040200);中国科学院合肥物质科学研究院院长火花基金(YZJJ201328); 液态铅铋合金是先进反应堆-加速器驱动的次临界系统(ADS)优选的靶材和冷却剂材料,液态铅铋流动速度场的测量是优化堆芯组件分布以及靶窗结构的一种重要手段。同时,冷却剂流动速度也是反映反应堆热工水力特征的重要参数之一。本文采用实...; 关键词：速度场超声多普勒液态铅铋合金 ULTRASOUND DOPPLER VELOCIMETRY (UDV)

动态PPP定位中周跳自动探测与处理策略被引量：6: 《地球物理学报》2014年第5期1433-1439,共7页柴艳菊阳仁贵张宝成; 国家自然科学基金(41174031,41374043,41231064);国家重点基础研究发展计划(2012CB825604);863(2012AA121803)项目联合资助; 周跳的自动探测与有效处理是动态PPP定位中关键和棘手的问题．本文提出利用L1、L2、L4、L5历元间差分，并联合doppler积分综合探测与定位周跳．对准确判定发生周跳的卫星，不进行周跳的固定和修复，而是将其作为新升起的卫星重新估计模...; 关键词：动态PPP 模糊度重新初始化周跳探测 doppler观测

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