摘要
By means of Fourier transform, short time Fourier transform (STFT), continuous wavelet transform (CWT) and discrete wavelet transform (DWT), an experimental recording signal of ground motion induced by an explosion was analyzed. The presented results show that the wavelet transform method is the best way to obtain the information details of explosion seismic effects. In the frequency bands with high frequency values, the seismic energy may be very small, but its peak particle vibration strength may be still very large. Discrete wavelet transform provides a new tool for the time-frequency analysis of explosion seismic effects and their structural responses.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 31-36 |
| 页数 | 6 |
| 期刊 | Baozha Yu Chongji/Expolosion and Shock Waves |
| 卷 | 23 |
| 期 | 1 |
| 出版状态 | 已出版 - 1月 2003 |