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基于广义S变换的地震波能量衰减分析 被引量：41

Generalized S-transform based seismic attenuation analysis
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摘要 通过S变换、广义S变换、短时Fourier变换和连续小波变换等地震信号时频分析方法的比较,阐明广义S 变换的高分辨率性质,模型数据试算表明算法的正确和有效性。给出基于广义S变换的波场能量——频率估算技术,提取瞬时等效吸收系数。二维实际地震数据试算表明,方法可行,可用于油气检测的研究。 Time-frequency analysis of seismic signal was implemented with short-time Fourier transform (STFT), continuous-wavelet transform (CWT), and generalized S-transform (GST). The correctness and effectiveness of the algorithms were verified on model data. Comparison between STFT, CWT, and GST reveals that GST is superior in resolution. Based on the results, GST was adopted in extraction of instantaneous absorption coefficients. Satisfactory results have been achieved by applying the method to real 2-D seismic data
作者 刘喜武 年静波 刘洪
机构地区 中国海洋大学海洋地球科学学院 中国科学院地质与地球物理研究所
出处 《勘探地球物理进展》 2006年第1期20-24,共5页 Progress in Exploration Geophysics
基金 中国科学院知识创新重大项目"环渤海(湾)地区前新生代海相油气资源研究"(KZCX1-SW-18)资助
关键词 广义S变换 能量衰减 吸收系数 油气检测 generalized S-transform attenuation absorption coefficient oil and gas detection
分类号 P631.4 [天文地球—地质矿产勘探]
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参考文献13

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二级参考文献32

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勘探地球物理进展
2006年 第1期

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