Time–frequency feature representation using energy concentration: An overview of recent advances
Signal processing can be found in many applications and its primary goal is to provide
underlying information on specific problems for the purpose of decision making. Traditional …
underlying information on specific problems for the purpose of decision making. Traditional …
广义S 变换与薄互层地震响应分析
高静怀 - 地球物理学报, 2003 - dzkx.org
Stockwell 等人提出的S 变换虽然与Fourier 谱能保持直接联系, 然而, 由于S
变换中的基本小波不适用于地震资料处理. 为此本文采用两个步骤对S 变换加以推广 …
变换中的基本小波不适用于地震资料处理. 为此本文采用两个步骤对S 变换加以推广 …
Optimal wavelet denoising for phonocardiograms
Phonocardiograms (PCGs), recordings of heart sounds, have many advantages over
traditional auscultation in that they may be replayed and analysed for spectral and frequency …
traditional auscultation in that they may be replayed and analysed for spectral and frequency …
On the measurement of seismic traveltime changes in the time–frequency domain with wavelet cross-spectrum analysis
The spatial distribution of temporal variations in seismic wavespeed is key to understanding
the sources and physical mechanisms of various geophysical processes. The imaging of …
the sources and physical mechanisms of various geophysical processes. The imaging of …
利用VSP 资料直达波的包络峰值处瞬时频率提取介质品质因子
高静怀， 杨森林， 王大兴 - 地球物理学报, 2008 - dzkx.org
本文采用一个具有4 个待定参数的函数去逼近震源子波, 利用黏弹介质中单程波传播理论推导出
了地震子波包络峰值处瞬时频率(EPIF) 和品质因子之间的解析关系; 同时 …
了地震子波包络峰值处瞬时频率(EPIF) 和品质因子之间的解析关系; 同时 …
High-resolution characterization of geologic structures using the synchrosqueezing transform
N Liu, J Gao, Z Zhang, X Jiang, Q Lv - Interpretation, 2017 - library.seg.org
The main factors responsible for the nonstationarity of seismic signals are the nonstationarity
of the geologic structural sequences and the complex pore structure. Time-frequency …
of the geologic structural sequences and the complex pore structure. Time-frequency …
On the denoising method of prestack seismic data in wavelet domain
M Jian, G Jinghuai, C Wenchao - SEG International Exposition and …, 2006 - onepetro.org
In this paper, the modeling of the random noise in prestack seismic data is discussed. The
statistic character of the local wavelet power spectrum of the random noise is studied by …
statistic character of the local wavelet power spectrum of the random noise is studied by …
Generating a relative geologic time volume by 3D graph-cut phase unwrapping method with horizon and unconformity constraints
X Wu, G Zhong - Geophysics, 2012 - library.seg.org
Construction of a relative geologic time (RGT) volume is vital to seismic geomorphological
and sedimentological interpretation. Seismic instantaneous phase unwrapping provides an …
and sedimentological interpretation. Seismic instantaneous phase unwrapping provides an …
Wavelet transform with generalized beta wavelets for seismic time-frequency analysis
Using the continuous wavelet transform (CWT), the time-frequency analysis of reflection
seismic data can provide significant information to delineate subsurface reservoirs …
seismic data can provide significant information to delineate subsurface reservoirs …
3D seismic attributes for a tight gas sand reservoir characterization of the eastern Sulige gas field, Ordos Basin, China
ABSTRACT The Lower Permian Xiashihezi Formation of the Ordos Basin is the largest
producer of tight gas sand in China. The controls on tight gas production are many and …
producer of tight gas sand in China. The controls on tight gas production are many and …