基于时频分析的地层吸收系数计算方法

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A method for calculating layer absorption coefficient based on time-frequency analysis

摘要: 时频分析方法是傅立叶变换及分析的发展,是地震信号处理的重要分析工具,其方法很多、应用广泛。重点介绍基于多种小波基的时频分析方法及S变换与广义S变换方法的时频分析方法,并应用于计算地层吸收系数,其结果优于常规的FFT方法,具有较高的分辨率。

Abstract: Time-frequency analysis is developed from Fourier transform and Fourier analysis, and it is also an important tool for seismic signal processing. This paper discusses the method of time-frequency analysis, which is based on multiple wavelet bases and S-transform or general S-transform, and it's also used to cal-culate layer absorption coefficient. The results are better than normal FFT method and have higher resolu-tion.