Physical wavelet frame denoising

被引：122

作者：

Zhang, RF ^{[1
]}

Ulrych, TJ ^{[1
]}

机构：

[1] Univ British Columbia, Dept Earth & Ocean Sci, Vancouver, BC V6T 1Z4, Canada

来源：

GEOPHYSICS | 2003年 / 68卷 / 01期

关键词：

D O I：

10.1190/1.1543209

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：

This paper deals with the design and implementation of a new wavelet frame for noise suppression based on the character of seismic data. In general, wavelet denoising methods widely used in image and acoustic processing use well-known conventional wavelets which, although versatile, are often not optimal for seismic data. The new approach, physical wavelet frame denoising uses a wavelet frame that takes into account the characteristics of seismic data both in time and space. Synthetic and real data tests show that the approach is effective even for seismic signals contaminated by strong noise which may be random or coherent, such as ground roll or air waves.

引用

页码：225 / 231

页数：7

共 16 条

[1]

[Anonymous], 1998, PHYS A

[2]

Bosman C., 1993, SEG TECHNICAL PROGRA, P1261

[3] FREQUENCY-TIME DECOMPOSITION OF SEISMIC DATA USING WAVELET-BASED METHODS [J].

CHAKRABORTY, A ;

OKAYA, D .

GEOPHYSICS, 1995, 60 (06) :1906-1916

[4]

DAUBECHIES I, 1997, GEOPHYSICS, V62, P1896

[5]

DU B, 1998, 68 ANN INT M SOC EXP, P350

[6] A CLASS OF NONHARMONIC FOURIER SERIES [J].

DUFFIN, RJ ;

SCHAEFFER, AC .

TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY, 1952, 72 (MAR) :341-366

[7] Characterizing seismic time series using the discrete wavelet transform [J].

Grubb, HJ ;

Walden, AT .

GEOPHYSICAL PROSPECTING, 1997, 45 (02) :183-205

[8]

GULUNAY N, 1986, 56 ANN INT M SOC EXP

[9]

Ioup J. W., 1998, 68 ANN INT M, P1076, DOI [10.1190/1.1820072, DOI 10.1190/1.1820072]

[10] Wavelet transform inversion with prior scale information [J].

Li, XG ;

Sacchi, MD ;

Ulrych, TJ .

GEOPHYSICS, 1996, 61 (05) :1379-1385

← 1 2 →