| Title |
Automatic Seismic P-wave Detection Algorithm Using Variations of Impact Momentum |
| DOI |
http://doi.org/10.5370/KIEE.2018.67.7.884 |
| Keywords |
Earthquake ; EEWS ; P-wave detection ; Jerk ; Impact momentum |
| Abstract |
In this paper, we propose an automatic earthquake P-wave detection algorithm based on the variations of the impact momentum derived from the seismic acceleration signals. The amount of change in the impact momentum induced by the acceleration refers to the influence of buildings or facilities on the earthquake, The proposed algorithm can effectively detect the seismic P-wave by simultaneously considering the amplitude and the frequency change of the seismic wave when the earthquake occurs. Computer simulations using the observed seismic signals were performed to evaluate the validity of the induced impact momentum variation and the superiority of the proposed algorithm. |