| EMTF在宽频大地电磁测深数据处理中的应用 |
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| 引用本文： | 徐坤,;叶高峰,;魏文博,;郭泽秋.EMTF在宽频大地电磁测深数据处理中的应用[J].物探与化探,2014(5):1055-1059. |
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| 作者姓名： | 徐坤 ;叶高峰 ;魏文博 ;郭泽秋 |
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| 作者单位： | [1]中国地质大学地下信息探测技术与仪器教育部重点实验室,北京100083; [2]中国地质大学地球物理与信息技术学院,北京100083; [3]地质过程与矿产资源国家重点实验室,北京100083 |
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| 基金项目： | “深部探测技术与实验研究”专项（sinoprobe-01-02）,国家自然科学基金青年基金项目（40904025） |
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| 摘 要： | 如何有效地压制各种电磁噪声,提高信噪比,保证大地电磁测深数据质量,始终是大地电磁资料采集与处理的核心问题。为寻求更好的处理效果,使用EMTF系统(单点,远参考以及多站同步MMT)对华北多个宽频MT测点数据进行了处理,并编写Matlab接口来方便地改写处理参数。与SSMT-2000对比,结果表明,EMTF系统在多数情况下可以压制噪声,并获得较好的处理效果,提高数据处理的效率。
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| 关 键 词： | 大地电磁测深 EMTF SSMT Robust MMT |
The application of EMTF to the data processing in wide spectrum magnetotelluric sounding |
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| Institution: | XU Kun, YE Gao-Feng, WEI Wen-Bo, GUO Ze-Qiu ( 1. Key Laboratory of Underground Information Detection Technique and Instrument of Ministry of Education, China University of Geosciences, Beijing 100083, China; 2. School of Geophysics and Information Technique, China University of Geoscienres, Beijing 100083, China ; 3. Key Laboratory of Geo- logical Process and Mineral Resources, China University of Geosciences, Beijing 100083, China) |
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| Abstract: | The problems as to how to suppress various kinds of disturbance efficiently, raise signal-to-noise ratio and guarantee the data quality have become the key issues in the collection and handling of MT data. To get more accurate resuhs, the authors introduced the EMTF system （single, reference and MMT） and used this system to process some of the MT data obtained from North China, and also compiled Matlab program so as to rewrite parameters easily. In comparison with SSMT-2000, the EMTF system can suppress the noise in most cases and greatly improve the efficiency of data processing. |
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| Keywords: | magnettotelluric sounding EMTF SSMT-2000 Robust MMT |
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