| 联合时频分布及其属性的应用 |
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| 引用本文： | 印兴耀,张奎,张广智.联合时频分布及其属性的应用[J].石油地球物理勘探,2003,38(5):522-526. |
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| 作者姓名： | 印兴耀 张奎 张广智 |
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| 作者单位： | 石油大学地球资源与信息学院 东营
(印兴耀，张奎)，石油大学地球资源与信息学院 东营(张广智) |
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| 摘 要： | 针对地震信号是非平稳信号，本文讨论了非平稳信号理论中的联合时频分布方法及其时频属性。联合时频分布方法把整体频谱推广到局部频率，根据频率随着时间的变化情况，对信号进行有效的分析。由联合时频分布提取的地震属性(平均频率、瞬时带宽、扭度、峰态)可以突破传统的瞬时属性的局限，有效地指示地质层位的变化，可以作为较好的属性应用于地震资料解释中。
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| 关 键 词： | 联合时频分布 应用 时频 属性 核函数 地震信号 地震资料解释 |
Application of joint time-frequency distribution and its attribution. |
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| Yin Xingya o,Zhang Kui and Zhang Guangzhi..Application of joint time-frequency distribution and its attribution.[J].Oil Geophysical Prospecting,2003,38(5):522-526. |
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| Authors: | Yin Xingya o Zhang Kui and Zhang Guangzhi |
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| Abstract: | In view of the seismic signal being non-stationary signal,the paper discussed the methods of joint time-frequency distribution in analysis of non-stationary signal theory and its time-frequency attributes.Generalized into local frequen cy from integral frequency,the method of joint time-frequency distribution effe ctively analyzes the signal based on the variation of frequency with time.The attributes (average frequency,instantaneous bandwidth,twist and peak level ) obt ained from joint time-frequency distribution can break out the limitation of tr aditional instantaneous attributes,effectively point out the variation in geolog ic formation and be applied in seismic data interpretation as a good attributtes . |
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| Keywords: | joint time-frequency distribution time-frequency attributes kernel function |
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