声学探测

南黄海盆地北部坳陷海底油气渗漏的声学探测

Acoustic detection of seabed hydrocarbon seepage in the north depression of South Yellow Sea Basin

高分辨率声学探测技术是浅海松散沉积地层及其赋存资源调查的重要手段。

Submarine high-resolution acoustic detection technique is an important method to investigate the sedimentary strata and resources in the offshore area .

海底浅层声学探测空间数据集成与融合模型及GIS表达研究

Study on the Integration and Fusion Models of Spatial Data Collected by Submarine Sub-bottom Acoustic Exploration with Its Representation in GIS

文章简要介绍了X射线探测、γ射线探测、四极共振分析、脉冲式快中子分析、离子迁移率光谱测量、毫米波探测、声学探测、磁场探测、电磁脉冲探测等安全检测技术的物理基础。

This paper briefly describes the basis of technologies such as X ray and γ ray detection , quadrapole resonance analysis , pulsed fast neutron analysis , ion mobility spectrometry , millimeter wave detection , acoustic inspection , magnetic field defection and electromagnetic pulse detectors .

无线电声学探测系统的声源信号形式与性能限制因素

RASS : Acoustic Signal Model and Limiting-Performance Factors

天然气水化合物的声学探测进展

Advances in acoustic exploration of the gas hydrate

本文通过对低频主动声纳的主动声纳方程的分析与声学探测过程的仿真，初步研究了低频主动声纳在不同距离上的最优探测频率问题。

With analyzing the detecting procedure of Low-frequency active sonar and emulating about it , the Optimum Detection Frequency Band of Low-frequency Active Sonar were researched .

火箭助飞末制导深弹入水后，在下沉过程中，即可利用深弹头部安装的声学探测系统（声呐）接收水中运动目标的辐射噪声。

After a terminal-guidance rocket-propelled depth charge sinks in water , it can receive the noise generated by moving targets using an underwater acoustic detection system installed at the head .

最后，我们利用两种方式设计定向声源，并预测这种定向声源具有广泛的应用，例如作为声学探测设备或者声学集成设备。

The Three-series Bolcking system of Electric System of the Mechatronic Integrating Facilities Finally , we design the directive acoustic source ( DAS ) by utilizing two different kinds of method .

海底表层底质探测系统是一种新型的声学探测设备，它利用声学信号实时走航式地遥测海底的表层底质。

The seabed sounding system of surface substrate is a kind of new pattern acoustics acquisition installation . It telemeters seabed surface substrate utilizing the real time acoustics single when it goes away to navigate .

声载频及其调制信号的选择是无线电声学探测系统的设计难点，本文给出了声频窗和跳频间隔的表达式，讨论了五种声源信号形式。

How to select the acoustic carrier frequency and the modulating signal is a difficult problem in design of Radio-Acoustic Sounding System ( RASS ) . This paper presents the expressions of acoustic-frequency-window and frequency-bouncing-interval , and discusses five sorts of acoustic signal models .

海底声学探测结果首次揭示了南黄海盆地北部坳陷选定区块海底油气渗漏现象的存在。

Therefore it should be the main deposit for the sand exploration in study area . ( 6 ) It may be the first time that submarine acoustic detection results reveal the presence of submarine hydrocarbon seepage in selected block of the northern depression in the South Yellow Sea Basin .

海底底质多波束声学方法探测技术研究

Research on Acoustical Detection of Seabed Sediment with Multi-beam Sonar

快堆蒸汽发生器声学泄漏探测技术的研究&Ⅰ.系统信号特性

Investigation on acoustic leak detection methods in liquid metal fast breeder reactor steam generator I. characteristics of signals

用声学设备探测水体中悬浮泥沙浓度及其变化的关键问题是对观测数据进行标定。

The key to the problem of probing the concentration of suspended sediment in water and its vari - ation with acoustic equipment is how to calibrate the obtained data .

水下小目标主被动声学特性及探测方法研究

Researches on the Active-passive Acoustic Characteristics and the Method of Detection of the Underwater Diver

心理声学模型中音调探测算法的改进

Modifications to a tonality detection algorithm in psycho-acoustic model