对此局域模性质的研究有助于声波或弹性波滤波器的制作。
This study to the properties of the localized modes is useful to the fabrication of the acoustic or elastic wave filters.
正交偶极子阵列声波测井仪中前端信号采集和处理单元大量使用了VCVS有源滤波器。
VCVS active filters are greatly used in front signal acquisition and processing unit of the Cross Multipole Array Acousticlog tool.
为了提高声波测井数据采集的精度，利用MATLAB设计了一种可以在FPGA中实现的FIR滤波器。
To improve the accuracy of acoustic logging data acquisition, a FIR filter that can implement in FPGA was designed through the using of MATLAB.
该设备还采用了“适应滤波技术”。即便声波的振幅和频率在牙钻使用之时发生了变化，电子滤波器仍能锁定声波并将其转移。
It also USES "adaptive filtering" technology, where electronic filters lock onto sound waves and remove them, even if the wave's amplitude and frequency change as the drill is being used.
并根据宽波束超声波流量计的特点重点进行了自动增益控制放大器和跟踪带通滤波器的设计。
Based on the characteristic of the Wide-beam ultrasonic flowmeter, automatic gain control amplifier and the tracking band-pass filter are devised.
文章讨论了有源滤波器在偶极子声波测井仪器中的应用，并详细介绍了常用的有源高通、低通滤波器电路的参数设计与调试方法。
The paper introduces the application of active filters in the instrument, as well as the parameter design of the lo-pass and hi-pass filters.
声频设备附近的墙壁会反射声波，空气中的声波叠加，产生频率响应误差(亦称梳状滤波器)。
Nearby room boundaries can create frequency response errors (called comb filtering) due to wave reflections combining in the air.
根据声波测井数据特点选取汉宁窗设计滤波器，根据FPGA的特征对滤波器系数进行了量化。
According to the data characteristics of acoustic logging, Hanning window was selected to design the filter. The filter coefficients were quantized following the FPGA's characteristics.
根据声波测井数据特点选取汉宁窗设计滤波器，根据FPGA的特征对滤波器系数进行了量化。
According to the data characteristics of acoustic logging, Hanning window was selected to design the filter. The filter coefficients were quantized following the FPGA's characteristics.
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