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声层析
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  acoustic tomography
     Primer of Acoustic Tomography in ASIAEX2001
     ASIAEX2001联合实验声层析初步
     Basic Principle and Application of Ocean Acoustic Tomography
     海洋声层析的基本原理和应用
短句来源
     Numerical Simulation of Acoustic Tomography for Monitoring the Yellow Sea Cold Water Mass
     黄海冷水团声层析监测数值模拟
短句来源
     Which include new type of transducer materials, non-linear underwater acoustics, matched filter processing, robust signal processing, underwater communication, synthetic aperture imaging technique, data fusion, acoustic tomography, underwater GPS technique etc.
     包括新型水声换能器材料、水中非线性声学、匹配场过滤、宽容性信号处理、水声通信、合成孔径成象技术、数据融合、声层析、水下GPS技术等。
短句来源
     Two intriguing topics of ocean acoustic tomography, monitoring of climate variabilities and inversion of internal wave using acoustic technique, are reviewed, and the advances and problems with the two topics are summarized.
     综述了目前海洋声层析研究的两个热点问题 ,归纳了用声学方法监测气候变化和反演内波两个领域所取得的研究进展 ,总结了研究过程中存在的问题
短句来源
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  acoustical tomography
     ACOUSTICAL MONITORING OF THE OCEAN OCEAN ACOUSTICAL TOMOGRAPHY AND ACOUSTICAL THERMOMETRY OF OCEAN CLIMATE
     用声学方法监测海洋——海洋声层析技术和大洋气候声学测温
短句来源
     For monitoring the ocean basin the ocean acoustical tomography technique measures the sound travel time between stations placed around the basin and uses inverse calculation to infer to temperatare and current field.
     为了监测海洋盆地,用海洋声层析技术测量布设在环绕盆地的站之间声传播时间并运用逆运算来推断温度及流速场。
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  “声层析”译为未确定词的双语例句
     Influences of dc Electric Fields on the Photoacoustic Depth Profiling in Semicoductors
     电场对半导体光声层析的影响
短句来源
     Acoustic propagation is essence content in ocean acoustics. As a forward problem, it is the basic of backward problem such as acoustic detection and tomography.
     声传播是海洋声学研究的基本内容,作为正问题,它是声探测与声层析等逆问题的基础。
短句来源
     The paper shows that theelectric field ean change the depth of photoacoustic investigations of the sample and increase thedetectability of the parameters of semiconductor materials.
     结果表明,电场能影响半导体的光声层析深度,并能使光声检测结果更为灵敏地反映半导体的材料参数差异。
短句来源
     An overview of the research work in some areas of underwater acoustic signal processing is presented. The topic described in this paper include underwater acoustic signal communication, synthetic aperture sonar, data fusion, underwater tomography and underwater GPS (Global Position System).
     本文简述了近年来水声信号处理领域中若干专题的研究进展.包括水声通信,合成孔径声纳,水声数据融合,声层析以及水下GPS系统等.
短句来源
     In this paper, the basic theories of ocean acoustic t omography, including ray travel time inversion, model travel time inversion, mod al phase inversion and modal-horizontal-refraction tomography are summarized.
     从射线声学和简正波声学的角度 ,概述了海洋声层析的基本理论 ,包括射线走时反演、简正波走时反演、简正波相位反演和简正波水平折射层析。
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  acoustic tomography
An acoustic transceiver for the monitoring of dynamic processes in the ocean by acoustic tomography methods is described, and the results of its tests are presented.
      
A hardware and software system for measuring the angular structure of the acoustic fields in acoustic tomography
      
We consider the optical-acoustic tomography problem.
      
The main result of the paper is construction of explicit approximate reconstruction formulas; from the mathematical standpoint, these formulas give the parametrix for the optical-acoustic tomography problem.
      
Acoustic tomography of currents in the ocean by the linearized method of matched nonreciprocity
      
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Mechanisms of the photoacoustic depth profiling in semiconductors is studied theoretically when an external dc electric field parallel to the surface of samples is applied.The paper shows that theelectric field ean change the depth of photoacoustic investigations of the sample and increase thedetectability of the parameters of semiconductor materials.

本文从理论上研究了在直流电场的作用下,半导体的光声层析机地。结果表明,电场能影响半导体的光声层析深度,并能使光声检测结果更为灵敏地反映半导体的材料参数差异。

Variability of the ocean is very large and has great influence on world weather, climate and human activities. Acoustic waves are the effective means for monitoring the change in the ocean interior. For monitoring the ocean basin the ocean acoustical tomography technique measures the sound travel time between stations placed around the basin and uses inverse calculation to infer to temperatare and current field. For measurement of the global warming due to greenhouse effect acoustical thermometry of ocean climate...

Variability of the ocean is very large and has great influence on world weather, climate and human activities. Acoustic waves are the effective means for monitoring the change in the ocean interior. For monitoring the ocean basin the ocean acoustical tomography technique measures the sound travel time between stations placed around the basin and uses inverse calculation to infer to temperatare and current field. For measurement of the global warming due to greenhouse effect acoustical thermometry of ocean climate was developed, in which the average travel time for very long distance is monitored over long period. A feasibility test at the Heard Island of Indian Ocean was conducted and acoustic signals were received at many places of Pacific and Atlantic Ocean. A network of acoustical monitoring in Pacific Ocean is designed for ten year operation. Instrumentation for the ocean acoustic tomography and the acoustic thermometry of ocean climate was described.

海洋变化非常大且对世界气候及人类活动有巨大影响。声波是监测海洋内部变化的有效方法。为了监测海洋盆地,用海洋声层析技术测量布设在环绕盆地的站之间声传播时间并运用逆运算来推断温度及流速场。为了测量由于温室效应引起的全球变暖,发展了大洋气候的声学测温技术,在很长的距离以很长的周期监测平均声传播时间。在印度洋的赫德岛进行了可行性实验,在太平洋及大西洋接收到了声信号。在太平洋建立观测网,进行为期十年的观测。文中并介绍了海洋层析技术及大洋气候声学测温的设备

Ocean acoustic tomography as a powerful tool for monitoring ocean interior is facing a new challenge observing the ocean in global scale. Some important issues relavant to underwater acoustics are addressed in this paper.

海洋声层析法作为检测海洋内部变化一有力手段,正面临着海洋声学大尺度观测新挑战。本文就海洋声传播的绝热近似;声传播时间的非线性偏移;声速剖面的线性及非线性反演等与声学大尺度观测相关的一些水声学问题的发展现状及存在问题等进行了综述性论述。文中还介绍了赫德岛预演实验等利用声层析法观测海洋内部变化的一些具体应用例

 
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