These patterns include events of envelope type, micro structural cracks, gas eruption, shock with high frequency and small swarms.
主要有包络型事件、微构造破裂事件、汽爆事件、高频地震和小震群。
2
By envelope demodulation of the resonance in a range of high frequency caused by the shock of low frequency, the resonance demodulation technique can effectively extract the shock features.
共振解调技术对低频冲击的高频共振波形进行包络检波，可以有效地提取低频冲击特征。
3
Shock wave and thermal load are the two main effects on the envelope during the discharge.