The interpolation precision is correlated with Max feed rate pulse equivalent of CNC cyc of interpolation and output impulse frequency of pulse generator.

其插补精度与最大进给速度、机床系统的脉冲当量、插补周期，以及脉冲发生器的输出脉冲频率有关。

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Computational results show that the mean impulse repetition rate of each impulse sequence in the time domain matches the corresponding characteristic defect frequency of the bearing very well.

计算表明，其脉冲线周期性出现的平均频率与相应的故障特征频率相当吻合。

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This algorithm set threshold to distinguish impulse noise point, through variance rate of gray level. The information of every impulse noise point is noted in a array.

该算法通过灰度变化率设置阈值判别脉冲噪声点，并将脉冲噪声点信息记录到与图像对应的噪声记录数组中。

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