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- And aiming at the array acoustic signal, the data acquisition and processing module has been designed and realized, including the design of the signal-rectified, ADC circuit, DSP circuit, CPLD logic circuit, AGC and data-compressing algorithm. 并针对阵列声波信号采集和处理的具体特点,设计和实现了阵列声波信号采集与处理模块,包括信号调理电路设计、ADC电路设计、DSP电路设计、CPLD逻辑功能设计等,采用软件方法,实现了自动增益控制和数据压数算法。
- array acoustic signal 阵列声波信号
- Doppler information of underwater acoustic signal is used to estimate weights of beamformer without array manifold and a neural network is introduced to carry out the blind beamforming. 本文针对水声环境和水声信号的特点,提出了一种可用于任意阵形的自适应神经网络盲波束形成方法。
- Array acoustic wave data are widely applied in well logging evaluation due to its abundant stratigraphic information. 摘要阵列声波资料由于能提供丰富的地层信息，在测井评价中被广泛应用。
- Audio signal acquisition procedures, can show a number of acoustic signals. 音频信号采集用程序，可以显示多个声波信号。
- The relationship between acoustic signal frequency and beam diamter, which is inconsistent with the results of work[7. 8],is meassured to be f= Cs/2d. 声信号频率与束直径的关系为f=(C_s)/(2d),它不同于工作的结果。
- Acoustic signal is stability and accuracy , so using acoustic signal to classify objects can expand the field of pattern recognition . 声信号具有稳定、精确的特点,使用声信号作为目标分类可以使模式识别的领域大大的拓宽。
- The results show that the main frequency of the acoustic signal increases with the shape change of the ripple spring located under the slot wedge. 研究表明在波纹板的弹性范围内,随着波纹板形变量的加大,测得的声信号能量谱图中主频率值逐渐增加。
- The pressure acoustic signal generated by the cavitation bubble was detected with the high-frequency measuring hydrophone. 实验表明：激光空泡的特征与水动力空化空泡相似；
- In acoustic signal processing,it is valuable to determine whether a real room acoustic system is nonlinear deterministic. 实际房间声学系统是否具有非线性确定性是声学信号处理中值得研究的问题。
- In this paper, the acoustic signals of FBC is studied with chaotic theory. 本文应用混沌理论对燃煤流化床燃烧产生的声波信号进行了研究。
- cross multipole array acoustic (XMAC) logging 交叉多极阵列声波（XMAC）测井
- Cross Multipole Array Acoustic (XMAC) XMAC交叉偶极子声波测井
- 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。
- Multi--pole array acoustic logging 多极子阵列声波测井
- linear phased array acoustic transmitter 相控线阵声波辐射器
- The underwater acoustic signal can cause surface wave motion at water-air interface and 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处的激光束进行幅度调制。
- It is realizable for the unit to pick up acoustic signal of different frequencies in a severe noisy background and single chip programmable shift and magnific. 可以实现在较大的背景噪声中提取不同频率的水声信号,在水声信号处理上使用了单片机程控换档放大,使之灵活。
- It is convenient to use the virtual instrument for data acquisition and analysis of the underwater acoustic signal,and help us to determine the structure and the arit... 利用虚拟仪器方便地实现了对水声信号的采集、处理,以及对水下目标测量时,为传感器结构和算法的确定提供参考。
- The underwater acoustic signal is the main information for the underwater detection and identification system, so it is very important to get the acoustic signal efficiently. 摘要水下声信号是水下探测系统实现对水中目标远程探测识别的主要信息之一，有效获取水下声信号是一个十分重要的问题。
