APPLICATION OF MULTI-SYNCHROSQUEEZED GENARALIZED S-TRANSFORM IN SEISMIC TIMEFREQUENCY ANALYSIS

摘要

Time-frequency (TF) analysis is an important tool in seismic data processing thatdescribes the frequency response of subsurface rocks and reservoirs. In this paper, wepropose a new TF method to characterize the time-varying feature of seismic signals, theproposed method is based on a generalized S-transform and employs a multisynchrosqueezingalgorithm. The technique provides a highly energy-concentrated TFrepresentation using a novel local estimation of instantaneous frequency. Synthetic andfield data examples show that the proposed method has a superior performance indepicting strong time-varying signals and can be used to identify subtle stratigraphy withhigh resolution.