| 相关原理在压制地震单频干扰中的应用研究 |
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| 引用本文： | 刘恋,张学强,胡治权,沈杰.相关原理在压制地震单频干扰中的应用研究[J].工程地球物理学报,2011,8(4):477-482. |
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| 作者姓名： | 刘恋 张学强 胡治权 沈杰 |
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| 作者单位： | 1. 中国地质大学地球物理与空间信息学院,湖北武汉,430074
2. 中石化西南油气分公司勘探开发研究院德阳分院,四川德阳,618000 |
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| 摘 要： | 在野外地震采集数据的区域,由于有工业电线,导致地震记录存在着大量50Hz的单频噪声.互相关函数是确定单频干扰噪声频率重要手段.以相关原理为基础,提出分步搜索的快速算法得到高精度干扰频率.合成数据得出频率估算精度达到0.001Hz能达到较好压制效果.理论试算和实际地震资料处理结果表明该方法是有效和可行的.
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| 关 键 词： | 地震勘探 互相关 时间域 单频干扰 分步搜索 |
Research on Suppression of Single Frequency Interference from Seismic Records Based on Cross Correlation Principle |
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| Liu Lian,Zhang Xueqiang,Hu Zhiquan,Shen Jie.Research on Suppression of Single Frequency Interference from Seismic Records Based on Cross Correlation Principle[J].Chinese Journal of Engineering Geophysics,2011,8(4):477-482. |
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| Authors: | Liu Lian Zhang Xueqiang Hu Zhiquan Shen Jie |
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| Affiliation: | Liu Lian1,Zhang Xueqiang1,Hu Zhiquan2,Shen Jie2 (1.Faculty of Geophysics & Geomatics,China University of Geosciences,Wuhan Hubei 430074,China,2.Deyang Branch Institute E&P Research Institute SWPB SINOPEC,Deyang Sichuan 618000,China) |
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| Abstract: | In the process of field seismic data acquisition,there are a large number of single frequency interferences around 50Hz in seismic records when a high-tension line crosses over a seismic line The cross correlation function is an essential means of determining the single frequency interference frequency.This paper,based on the principle of cross correlation,provides a method of fractional search for getting the interference frequency.The synthetic data examples indicate that the accuracy of the frequency sho... |
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| Keywords: | seismic exploration cross correlation time domain mono-frequency interference fractional search |
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