Matching pursuit time-frequency decomposition using wideband B-spline wavelet

作者：Liu Lanfeng^*; Li Lihua; Wei Xiucheng; Huang Zhongyu

来源：Oil Geophysical Prospecting, 2013, 48(3): 417-422.

• B-spline wavelet
• Instantaneous spectrum
• Low-frequency energy
• Matching pursuit
• Reservoir heterogeneity
• Time-frequency decomposition
• Time-frequency localization
• Time-frequency spectrum

A new time-frequency decomposition method is implemented based on the general matching pursuit in virtue of the high resolution and the parameter-adjustment flexibility of wideband B-spline wavelet with four parameters. This paper discusses the accuracy and validity of the method through theoretic model data. The time-frequency spectrum calculated by this algorithm has higher resolution and better time-frequency localization than that calculated by Morlet wavelet. We apply it to the real seismic data successfully, and the low-frequency energy section calculated by this method can well reflect the reservoir heterogeneity and detail information in the reservoir.

• 出版日期2013
• 单位中国石油大学（华东）