| 小波包变换在重叠地震信号分离中的应用 |
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| 引用本文： | 郑宜珍,秦前清. 小波包变换在重叠地震信号分离中的应用[J]. 计算机工程与应用, 2004, 40(26): 176-177,215 |
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| 作者姓名： | 郑宜珍 秦前清 |
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| 作者单位： | 武汉大学测绘遥感信息工程国家重点实验室,武汉,430079;武汉大学测绘遥感信息工程国家重点实验室,武汉,430079 |
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| 基金项目： | 国家自然科学海量地震数据压缩的形态学方法 |
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| 摘 要： | 地震资料处理中常会遇到重叠地震信号,而如何将这些重叠数据分离开,是一个有待研究的课题。论文利用小波包同时在频域和时域具有良好的局部化性质,采用Shannon熵标准来选取最优小波包基,确定了重叠爆破的延迟时间,从而成功地对重叠地震信号进行了分离。
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| 关 键 词： | 小波包变换 最优小波包基 重叠地震信号分离 |
| 文章编号： | 1002-8331-(2004)26-0176-02 |
The Application of Wavelet Packages Transform in Separating Overlapped Earthquake Signals |
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| Zheng Yizhen Qin Qianqing. The Application of Wavelet Packages Transform in Separating Overlapped Earthquake Signals[J]. Computer Engineering and Applications, 2004, 40(26): 176-177,215 |
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| Authors: | Zheng Yizhen Qin Qianqing |
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| Abstract: | The overlapped earthquake signals often appear in seismic data processi ng .It is a demanding task to separate the overlapped earthquake datum.Based on t he good localizing quality of wavelet packages in frequency region and time reg ion at the same time ,this paper selects the best basis in wavelet packages by using Shannon entropy criterion,and finds the delay time of the overlapped ea rthquake signals,and so separates them successfully. |
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| Keywords: | wavelet packag es transform best basis separating of overlapped earthquake signals |
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