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.
成功地实现了汉宁窗、高斯窗调制的任意频率单音频信号的产生，达到了任意波形发生器的功能。
The real arbitrary waveform generator that can generate single acoustic frequency signal modulated by Manning window and Gaussian window is developed.
为有效减少基波相位分离法在非同步采样时给介损角测量带来的误差，提出了加汉宁窗插值的改进基波相位分离法。
The paper describes a digital measurement method - fundamental frequency phase detachment method -which is used for detecting the dielectric loss of electric equipment.
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