摘要
<正>§1.引言 小波分析是一种时间-频率域分析方法,介于纯时间域的方波分析和纯频率域的傅里叶分析之间,同时具有时间域和频率域的良好局部化性质.不同频率成份在时域上的取样步长具有调节性,高频者小,低频者大.对于不同尺度成份采用相应粗细的时(空)域取样步长,能够不断地聚焦到对象的任意微小细节.本文,利用小波变换的性质,在提高地震资料的信噪比和分辨率方面进行数值实验,取得了良好效果.有关小波变换的定义、多尺度分析、Mallat
For the problems exiting in real seismic data processing, such as S/N ratio and resolution, this paper utilizes 2D wavelet transform and multi-resolution analysis to attenuate noise and enhance resolution. Many calculations preseuted in this paper have shown that the data quality after multi-resolution analysising is improved.
引文
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