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为了避免特征点选取相对集中，给出一种随机分块选取特征点对的方法。
Random block feature point selection is developed to avoid feature point close clustering.
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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