小波分析及其在时变滤波和信号分离中的应用

利用小波变换具有的多时频分辨率特性，对地震勘探和测井信号这类非平衡信号进行分析，可以充分利用信号的时间－频率特性。文中介绍了小波变换的基本概念及其在地震勘探信号的时变滤波和声波全波列测井信号的信号分离中的应用，实例表明，小波变换在地球物理信号中具有广阔的应用前景。图５参７

Wavelet Analysis and its Applications in Time-varying Filtering and Signal Separation

Wavelet Transformation (WT) is a newly developed time-frequency domain analysis method, it has multiresolution time-frequency character Using WT to analysis seismic exploration signal and well-logging signal which are nonstationary, their time-frequency information of signals can be used fully This paper describes the basic concept of WT and its applications in time-varying filtering of seismic exploration signal and full waveform acoustic logs signal seperation The results of practical applications show that it is a promising method to apply WT in geophysical signal processing.