Matching Demodulation Synchrosqueezing S Transform and Its Application in Seismic Time-Frequency Analysis

被引：15

作者：

Wang, Qian ^{[1
]}

Li, Yexue ^{[2
]}

Chen, Shijun ^{[1
]}

Tang, Bo ^{[1
]}

机构：

[1] Hubei Univ Arts & Sci, Sch Math & Stat, Xiangyang 441053, Peoples R China

[2] Hubei Univ Arts & Sci, Sch Civil & Architecture, Xiangyang 441053, Peoples R China

来源：

IEEE GEOSCIENCE AND REMOTE SENSING LETTERS | 2022年 / 19卷

基金：

中国国家自然科学基金;

关键词：

Transforms; Demodulation; Estimation; Tools; Time-frequency analysis; Signal resolution; Frequency modulation; Matching demodulation; seismic data processing; synchrosqueezing S transform (SSST); time-frequency (TF) analysis; REASSIGNMENT;

D O I：

10.1109/LGRS.2020.3047892

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Time-frequency (TF) analysis is a powerful tool to describe the frequency response of subsurface rocks and hydrocarbon reservoirs. In this letter, the matching demodulation synchrosqueezing S transform (MDSST) that achieves a highly concentrated TF representation was introduced to seismic TF analysis. The MDSST includes two steps: the matching demodulation technique is preprocessing that provides a rough estimation of instantaneous frequency (IF) of the analyzed signal, and the synchrosqueezing transform (SST) is postprocessing that produces an accurate IF. Numerical experiments on synthetic and real signals demonstrate the superiority of the MDSST in seismic TF analysis.

引用

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