Ten lectures on wavelets
Adapted wavelet analysis from theory to software
Adapted wavelet analysis from theory to software
Methods and Applications of Signal Processing in Seismic Network Operations
Methods and Applications of Signal Processing in Seismic Network Operations
Analysis of the Earth's magnetic field variations on the basis of a wavelet-based approach
Digital Signal Processing
Detection of precursory signals in front of impulsive P-waves
Digital Signal Processing
Seismic noise study for accurate P-wave arrival detection via MODWT
Computers & Geosciences
Digital Signal Processing
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P-wave arrivals of many weak events cannot be precisely determined manually. Difference in power levels between noise and P-wave in wavelet detail of weak events enables us to determine P-wave arrival manually. Because of this power difference, automatic onset detection and picking algorithm is introduced using the same wavelet detail. Parameter settings are not needed as algorithm will work on data generated by either short or very broad band seismometers. Application of the proposed algorithm on data of three stations of Egyptian National Seismic Network (ENSN) in Cairo region shows a maximum standard deviation of 0.14 seconds of the corresponding manual picks.