地质科技情报2011，Vol.30Issue(5)：119-122,4.
基于改进Morlet小波的MP算法在地震频谱分析中的应用
MP Algorithm Based on Improved Morlet Wavelet in the Seismic Spectrum Analysis
摘要
Abstract
In the analysis of the instantaneous frequency of seismic signals , Morlet wavelet provides the best resolution ratio in symphysial area. This paper introduces the theory of matching pursuit algorithm on the basis of Morlet wavelet , and further improves the time frequency atom dictionary. Besides , the parameter is added to adjust the bandwidth of Morlet wavelet. The comparison of the theory of matching pursuit algorithm on the basis of morlet wavelet with the traditional STFT method with a theory model indicates that the former has a higher resolution ratio for the instantaneous frequency. The actual seismic data processing of carbonate rocks in southern Tahe Oilfield confirms that the modified Morlet wavelet method of matching pursuit time-frequency characterization of the reservoir is prominently better than STFT method.关键词
匹配追踪算法/Morlet小波/时频原子库/碳酸盐岩洞缝储层Key words
matching pursuit algorithm/ Morlet wavelet/ time frequency atom dictionary/ fractured and cavernous carbonate reservoir分类
天文与地球科学引用本文复制引用
孙劲松,陈国雄,刘天佑..基于改进Morlet小波的MP算法在地震频谱分析中的应用[J].地质科技情报,2011,30(5):119-122,4.基金项目
国家重大科技专项子课题"南海北部深水区生物礁地球物理特征及储层预测(2008ZX05025-03A-04) （2008ZX05025-03A-04）
