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1)  underwater acoustic signal
水声信号
1.
Data acquisition and analysis of the underwater acoustic signal based on virtual instrument;
基于虚拟仪器的水声信号采集与处理
2.
Research of noise reduction of underwater acoustic signals based on singular spectrum analysis;
基于奇异谱分解的水声信号降噪方法研究
3.
The design of a novel data acquisition and storage system of low frequency underwater acoustic signal;
一种新型低频水声信号数据采集存储系统设计
2)  underwater acoustic signals
水声信号
1.
This paper reviews the existing methods of chaotic signals analysis and puts forward applications of chaos to the identification of underwater acoustic signals.
讨论了目前混沌信号的分析方法 ,并提出了混沌在水声信号辨识中的应用方法。
2.
By using the arithmetic of infomax into the separation of underwater acoustic signals by researching the underwater acoustic signals distributing.
通过对水声信号幅值分布的研究,将基于概率密度函数估计的信息最大化算法运用到水声信号盲分离中,并通过仿真实验比较了基于不同概率密度函数的信息最大化算法对水声信号盲分离的效果。
3)  acoustic signal
水声信号
1.
Taking Water Depth Monitoring System for Port Channels as background and in view of the characteristic of acoustic emitted in the research, we take MCU and FPGA as core control units, designed an acoustic signal acquisition and processing system suitable for engineering project which is based on GPS time synchronization technology.
本文以“某港口航道水深适时监测技术研究”项目为背景,针对港口水深测量系统中发射的水声信号,采用基于GPS时间同步技术、以MCU+FPGA为核心控制单元的设计方案,设计了一套适用于工程实际的水声信号数据采集与处理系统。
4)  underwater acoustic signal
水下声信号
1.
The underwater acoustic signal can cause surface wave motion at the water-air interface and hence modulate the magnitude of the laser beam falling on the water surface.
水下声信号在水-空气界面会引起表面波动而对打在水表面的激光进行调制。
2.
A research was made on detecting underwater acoustic signals using laser.
对激光探测水下声信号可行性进行了研究。
3.
The laser detection of underwater acoustic signals exploited a laser receiving technique.
水下声信号激光探测技术采用了激光接收技术。
5)  marine acoustic signal bomb
水声信号弹
6)  Underwater acoustic signals
水下声信号
1.
Medium and low frequency underwater acoustic signals detecting with laser interferometry
中低频水下声信号的激光干涉法探测
2.
A new method has been developed to detect real-time underwater acoustic signals with laser and a corresponding test system has been built.
设计并实现了一套空中探测水下声信号的实验装置。
3.
A testing installation established by using the proposed method can detect underwater acoustic signals,which verifies the adequacy of relevant theory and simulation process as well as practicability of the method.
采用该方法建立的实验装置可准确探测水下声信号,验证了理论和仿真程序的正确性以及该方法的可行性,为航空遥感水下目标提供一种技术途径。
补充资料:地下水水资源评价(见水资源评价)


地下水水资源评价(见水资源评价)


  d ixiashui shuiziyuan Ping】ia地下水水资源评价见水资源评价。
  
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