Identification of Earthquake and Explosion Based on Nonlinear Time-frequency Analysis
ZHANG Fan
ZHU Xinyun
XIONG Dan
ZHONG Yuyun
CHEN Xiaoyan
Abstract：In this article Zhao-Atlas-Marks time-frequency analysis method was used to distinguish earthquake with explosion. The conclusion is drawn as follow the time-frequency spectrum of earthquake is more dispersive than that of explosion; average frequency of earthquake’s P wave is larger than that of explosion; compared to average time-frequency center of explosion, the average time-frequency center of earthquake is in the upper left corner of the time-frequency plane.
Keywords：EarthquakeNonstatoinary signalTime -frequency presentationExplosionTime field characteristicFrequency field characteristicZhao-Atlas-Marks time-frequency analysis method
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 56-63 )