Application of Empirical Mode Decomposition(EMD) to Interface Identification of Logging Sequence Strata
Nan Zhao · Well Logging Technology · 2014
The empirical mode decomposition(EMD)can decompose complex signal into a series of component functions through curves of local mean values,which can dispose the non-stationary and non-linear signals well.With regional fine selected sensitive index combination that reflects the geographic structure and lithology,the combination index can be discomposed through EMD method to study the correlation and the physical meaning of intrinsic mode functions,meanwhile it can well identify the stratigraphy and cycle sequence and provide an effective signal processing method for sequence interfaces.