| 矿集区大地电磁噪声场源分析及噪声特点 |
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| 引用本文： | 朱威,范翠松,姚大为,王刚.矿集区大地电磁噪声场源分析及噪声特点[J].物探与化探,2011,35(5):658-662. |
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| 作者姓名： | 朱威 范翠松 姚大为 王刚 |
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| 作者单位： | 1. 中国地质科学院地球物理地球化学勘查研究所,河北廊坊,065000
2. 吉林大学地球探测科学与技术学院,吉林长春,130026 |
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| 摘 要： | 结合长江中下游某矿集区大地电磁观测环境,分析大型矿山、通讯基站及其他主要电磁噪声源对视电阻率曲线的影响.依据时域波形将噪声分为脉冲噪声、周期噪声、三角波噪声、方波噪声、阶跃噪声、似充放电模式的三角噪声,便于在后期资料处理过程中针对不同的噪声类型对大地电磁数据进行降噪处理.
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| 关 键 词： | 矿集区 大地电磁 噪声源 噪声特点 |
NOISE SOURCE ANALYSIS AND NOISE CHARACTERISTICS STUDY OF MT IN AN ORE CONCENTRATION AREA |
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| ZHU Wei,FAN Cui-song,YAO Da-wei,WANG Gang.NOISE SOURCE ANALYSIS AND NOISE CHARACTERISTICS STUDY OF MT IN AN ORE CONCENTRATION AREA[J].Geophysical and Geochemical Exploration,2011,35(5):658-662. |
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| Authors: | ZHU Wei FAN Cui-song YAO Da-wei WANG Gang |
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| Institution: | ZHU Wei1,FAN Cui-song2,YAO Da-wei1,WANG Gang1 (1.Institute of Geophysical and Geochemical Exploration,CAGS,Langfang 065000,China,2.College of GeoExploration Science and Technology,Jilin University,Changchun 130026,China) |
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| Abstract: | Based on analyzing the actually measured MT data of an ore concentration area in the middle and lower reaches of the Yangtze River and considering the actual situation in the study area,this paper analyzed the profile characteristics of noise and divided the noise into 6 kinds,namely,impulse noise,periodic noise,triangle-wave noise,square-wave noise,step noise and triangular charge-discharge mode noise.The results obtained are helpful to making de-noising treatments directed against different noise types in... |
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| Keywords: | ore concentration area MT noise source noise characteristics |
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