Automatic recognition of seismic phase based on amplitude and instantaneous frequency
Shanyou Li, Haiyan Zhu, Jindong Song · World Earthquake Engineering · 2006
In order to reflect the characteristics of amplitude increase and frequency changing of seismic signal,a new automatic recognition method of seismic phase is developed based on the instantaneous amplitude and instantaneous frequency.By application of some harmonious signals and real seismic records,the precision and stability of the method are proved.