| 基于物理小波的地震资料最佳分辨率解释方法 |
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| 引用本文： | 高静怀,郑庆庆,王大兴,潘存焕.基于物理小波的地震资料最佳分辨率解释方法[J].煤田地质与勘探,2004,32(4):50-53. |
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| 作者姓名： | 高静怀 郑庆庆 王大兴 潘存焕 |
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| 作者单位： | 1. 西安交通大学电子与信息工程学院, 陕西 西安 710049; |
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| 基金项目： | 国家自然科学基金 (No.4 0 174 0 32 ),科技部 973预研课题,中科院知识创新重大项目 (No.KZCX1-SW - 18)资助 |
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| 摘 要： | 通过理论分析,指出:“基本小波与待分析的信号越接近,该信号在时间-尺度(或频率)域能量分布就越集中,即能量分布空间维数越低;反之,能量分布空间维数就越高,”然后分别深入地研究了信号和有色噪声的能量分布空间的性质。在这些工作的基础上,提出了基于最佳匹配地震子波(或有效信号)的物理小波,对地震资料进行最佳分辨率解释的方法。这种方法抑制了部分噪声和干扰波,同时增强了有效信息。模型及实际资料算例证明了其有效性。
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| 关 键 词： | 物理小波 小波变换 地震资料处理 地震噪声 |
| 文章编号： | 1001-1986(2004)04-0050-04 |
| 收稿时间： | 2003-12-08 |
| 修稿时间： | 2003年12月8日 |
On an interpretation method of seismic data with optimum resolution via physical wavelet |
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| GAO Jing-huai,ZHENG Qing-qing,WANG Da-xing,PAN Cun-huan.On an interpretation method of seismic data with optimum resolution via physical wavelet[J].Coal Geology & Exploration,2004,32(4):50-53. |
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| Authors: | GAO Jing-huai ZHENG Qing-qing WANG Da-xing PAN Cun-huan |
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| Institution: | 1. School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an 710049, China;2. Changqing Subsidiary Company of Petrol China. Xi'an 710049, China;3. Institute of geology and geophysics, Chinese academy of science. Beijing 100029, China |
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| Abstract: | Based on theoretical analyses, this paper indicates that the smaller the distance between the basic wavelet and the analyzed signal (in a sense of L2(R,dt) space, the more concentrated is its energy distribution in the time-scale domain, that is, the less is the dimensions of EDS of the signal, and vice versa. Then the EDS of signals and colored noises are studied, respectively. Based on these works, an interpretation method of seismic data is proposed by using the physical wavelet best matching the seismic wavelet (or significant signal). By this method, the noises and the interference waves are partially suppressed, at the same time, the useful information is enhanced. The efficiency of the method has been proved by modeling and field data. |
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| Keywords: | physical wavelet wavelet transform seismic data process seismic noise |
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