Spectrum Imaging Technique and Its Application Based on Matching Pursuit Algorithm
详细信息
- 责任者：Liu Xiaolong (Key Lab. of Tectonics and Petroleum Resources ; Ministry of Education ; Faculty of Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; Liu Tianyou
- 刊名：Oil Geophysical Prospecting
- 出版年：2010
- 卷期：45(6)
- 关键词：地震勘探 ; seismic exploration
- 页码：p.850-855
- 图表：illus., 18 refs.
- 分类号：1600
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
MMP algorithm by Liu was studied in this paper,the fixed scale parameter in the algorithm was modified to a flexible scale so the EMMP algorithm was formed and the practicability and flexibility of the MMP algorithm was raised. The results show that: 1) compared with some traditional algorithms, EMMP has higher time-frequency resolution; 2) the atom structure in EMMP algorithm has free scale, the atom’s structure is more flexible, determination of the optimal scale which can not be solved in MMP algorithm got resolved, as a result the time-frequency atom library could have better matching ability for the non-stationary seismic signal; and 3) the spectrum imaging results by EMMP and MMP algorithms for the seismic data in ZH area and JH area in QK Depression show that EMMP algorithm has higher lateral resolution than that of MMP algorithm.