| 串联去噪技术在金属矿地震勘探中的应用 |
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| 引用本文： | 李阳,吕庆田,韩立国,巩向博,于志国. 串联去噪技术在金属矿地震勘探中的应用[J]. 世界地质, 2012, 31(2): 406-411 |
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| 作者姓名： | 李阳 吕庆田 韩立国 巩向博 于志国 |
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| 作者单位： | 1. 吉林大学地球探测科学与技术学院，长春130026; 2. 中国地质科学研究院，北京100001 |
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| 基金项目： | 深部探测技术与实验研究专项 |
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| 摘 要： | 金属矿地震勘探中原始数据的信噪比很低，多种干扰混杂在记录中，常规去噪手段难以达到理想效果。针对金属矿地震数据中强线性干扰，设计了f-k 滤波、Radon 变换方法二级衰减; 针对强随机噪声，设计Radon 变换以及Curvelet 域组合变换法二级衰减，组成了f-k 滤波法、Radon 变换及Curvelet 域组合变换法串联去噪方法。应用于金昌金属矿多类混杂强噪声的地震实际数据中，大幅提高了数据的信噪比，经验证本文方法实用、有效。
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| 关 键 词： | 金属矿 串联去噪 f-k 滤波 Radon 变换 Curvelet 变换 |
Application of serial de-noise method in seismic exploration of metal mine |
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| LI Yang , L Qing-tian , HAN Li-guo , GONG Xiang-bo , YU Zhi-guo. Application of serial de-noise method in seismic exploration of metal mine[J]. Global Geology, 2012, 31(2): 406-411 |
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| Authors: | LI Yang L Qing-tian HAN Li-guo GONG Xiang-bo YU Zhi-guo |
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| Affiliation: | 1. College of Geo-exploration Science and Technology，Jilin University，Changchun 130026，China; 2. Chinese Academy of Geological Science，Beijing 100001，China |
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| Abstract: | The signal to noise ratio （SNR） of raw data from seismic exploration in metal mine is very low, and various sorts of undesired perturbations mixed in the record. Since the traditional de-noise methods are limited to improve the SNR, the authors designed f-k filtering and Radon transform secondary attenuation aiming at the medium-strong linear interferences of metal mine seismic data, and designed Radon transform and combined transformation method in Curvelet domain secondary attenuation to form the comprehensive denoise method byf-k filtering, Radon transform and Curvelet domain aiming at strong random noise. This method was tested in the metallic ore deposit of Jinehang, which enhanced the SNR and showed the practicality and efficiency. |
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| Keywords: | metal mine serial de-noise f-k filtering Radon transform Curvelet transform |
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