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Identification method of seismic phase in three-component seismograms on the basis of wavelet transform |
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| Authors: | XI-QIANG LIU HUI-LAN ZHOU PING SHEN XUAN-HUI YANG YAN-LU MA HONG LI |
| Institution: | 1. Seismological Bureau of Shandong Province, Ji'nan 250014, China 2. Graduate School, University of Science and Technology of China, Beijing 100039, China 3. Institute of Geophysics, China Seismological Bureau, Beijing 100081, China 4. Center for Seismic Data and Information, China Seismological Bureau, Beijing 100045, China |
| Abstract: | This paper puts forward wavelet transform method to identify P and S phases in three component seismograms using polarization information contained in the wavelet transform coefficients of signal. The P and S wave locator functions are constructed by using eigenvalue analysis method to wavelet transform coefficient across several scales. Locator functions formed by wavelet transform have stated noise resistance capability, and is proved to be very effective in identifying the P and S arrivals of the test data and actual earthquake data. |
| Keywords: | wavelet transform eigenvalue analysis seismic phase identification |
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