Through the energy analysis of different frequency bands, we can attain the blasting vibration signals' frequency identity and original signals' part character.
通过各频带的能量分析，才能获得较准确的频率特性，同时也可以得到原始信号的局部特征。
2
The demolition process of a 16th floor building in Harbin was monitored, and vibration velocity and frequency of ground particles were obtained during the blasting and collapsing process.
Through observation on shock wave and multiple pulsating caused by underwater blasting, the velocity, period, frequency and energy of shock wave and multiple pulsating are analysed.