Ricker Wavelet Based Seismic Trace Matching Pursuit Decomposition and Wigner-Ville Time-frequency Analysis
The high accuracy time-frequency representation of non-stationary signals is one of the key researches in seismic signal analysis. Low-frequency part of the seismic data often has a higher frequency resolution, on the contrary it tends to have lower frequency resolution in the high frequency part. Its difficult to fine characterize the time-frequency variation of non-stationary seismic signals by conventional timefrequency analysis methods due to the limitation of the window function. Therefore based on the Ricker wavelet, we put forward the matching pursuit seismic trace decomposition method. It decomposes the seismic records into a series of single component atoms with different frequency and energy, by making use of the Wigner-Ville distribution, has the time-frequency resolution of seismic signal reach the limiting resolution of the uncertainty principle and skillfully avoid the impact of interference terms in conventional Wigner-Ville distribution.
matching pursuit Ricker wavelet Wigner- Ville distribution time-frequency analysis time resolution frequency resolution
Wei Song Pengcheng Hu Yonglin Ouyang Qingcai Zeng Jiaqiang Huang
College of Geophysics and Information Engineering China University of Petroleum (Beijing) Beijing, C Research Institute of Petroleum Exploration & Development CNPC Beijing, China
国际会议
三峡
英文
1804-1807
2012-05-18（万方平台首次上网日期，不代表论文的发表时间）