Whether there exists a periodic impulse component in a vibration signal is an important sign of a mechanical device being faulty.
机械设备振动信号中是否存在周期性的冲击分量是其有无故障的重要标志。
It is difficult to detect the periodic impulse component in the vibration acceleration signal with conventional analysis methods such as time domain wave and frequency spectrum.
通过时域波形和频谱等基本分析手段来探测振动加速度信号中的周期性冲击分量往往是困难的。
The method of generating seismic wave by superposing impulse component and wide band component is used to study the interaction characteristics of near-filed ground motion in this paper.
运用脉冲分量与宽频分量叠加合成地震波的方法，来研究近场地震动的作用特性。
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