Journal of Jilin University(Earth Science Edition)

Previous Articles     Next Articles

Top-Hat Transformation and Magnetotelluric Sounding Data Strong Interference Separation of Lujiang-Zongyang Ore Concentration Area

Tang Jingtian1, Li Hao1,2, Li Jin1, Qiang Jianke1, Xiao Xiao1   

  1. 1.School of Geosciences and InfoPhysics, Central South University, Changsha410083, China;
    2.Shenzhen Invetigation and Research Institute Co.,LTD,Shenzhen518026, Guangdong,China
  • Received:2013-05-18 Online:2014-01-26 Published:2014-01-26

PDF (PC)

891

Abstract:

Morphology filtering based on mathematical morphology as a nonlinear signal processing method has demonstrated its value in magnetotelluric time-domain signal de-noising. But morphology filtering remove the steep-gentle changing of magnetotelluric time-domain signal which also contains useful information while remove the noise waveform of magnetotelluric time-domain signal. To solve this problem, the authors present a scheme based on top-hat transformation of mathematical morphology in noise suppression of magnetotelluric time-domain signal, using the ability of top-hat transformation on detecting peaks or troughs and flat structural elements to remove the noise from magnetotelluric time-domain signal. The results of processing measured magnetotelluric sounding data collecting from Lujiang-Zongyang ore concentration area by the proposed method show that the proposed method can remove noise waveform while reserving the steep-gentle changing of time-domain signal, restore the magnetotelluric time-domain signal contaminated by noise and improve the quality of magnetotelluric apparent resistivity curve.

Key words: electromagnetic prospecting, magnetotelluric, top-hat transformation, strong interference separation, Lujiang-Zongyang ore concentration area

CLC Number: 

  • P631.3
[1] Zhang Yangyang, Du Wei.

Adaptive Finite Element Method for Audio-Frequency Magnetotelluric Forward Modeling Based on Super Convergent Patch Recovery [J]. Journal of Jilin University(Earth Science Edition), 2026, 56(2): 673-683.

[2] Yu Nian, Zhang Xuejian, Kong Wenxin, Wei Chang. Multidisciplinary Advancements in Geomagnetically Induced Currents Research [J]. Journal of Jilin University(Earth Science Edition), 2024, 54(1): 54-67.
[3] Gao Kening, Deng Juzhi, Liu Wenyu, Yu Hui, Chen Hui, Zhou Cong, Wang Yanguo, Liu Baoshan. Deep Electrical Structure and Metallogenic Model in Sanhetun Mining Area, Heilongjiang Province [J]. Journal of Jilin University(Earth Science Edition), 2022, 52(3): 684-700.
[4] Zhou Cong, Tang Jingtian, Yuan Yuan, Li Guang, Xiao Xiao, Deng Juzhi. Spatial and Temporal Distribution Characteristics of Electromagnetic Fields in Strong Noise Area [J]. Journal of Jilin University(Earth Science Edition), 2020, 50(6): 1870-1886.
[5] Feng Kai, Qin Ce. Anisotropy Forward Modeling of Magnetotelluric(MT) Adaptive Finite Element [J]. Journal of Jilin University(Earth Science Edition), 2020, 50(6): 1887-1896.
[6] Weng Wangfei, Wang Deen, Hu Zhaoqi, Zhu Qiang, Wang Qinian, Wu Jiming, Tang Guoqiang, Zhang Pengfei. Characteristics of Thrust-Nappe Structure and Its Relationship with Mineralization in Xiuning-Shexian Integrated Exploration Area, Anhui Province [J]. Journal of Jilin University(Earth Science Edition), 2020, 50(5): 1518-1538.
[7] Zhang Penghui, Zhang Xiaobo, Fang Hui, Wang Xiaojiang, Liu Jianxun. Deep and Shallow Structural Characteristics of Middle Segment of Nenjiang-Balihan Fault Based on Geophysical Data [J]. Journal of Jilin University(Earth Science Edition), 2020, 50(1): 261-272.
[8] Xue Linfu, Zhu Ming, Li Wenqing, Liu Wenyu, Liu Zhenghong, Liu Zeyu. Earthquake Triggered by “Magma Bubble” Bursting: 2013 Songyuan Earthquake Cluaters in Jilin as an Example [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(6): 1865-1875.
[9] Zhang Cong, Shi Dishi, Zhang Ziya, Chen Ke, Yuan Kun, Qiao Jihua, Peng Fangping. Basement Structure of Western Chuxiong Basin in Yunnan Province: Using High-Precision Gravity-Magnetic-Electrical Survey [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(3): 863-871.
[10] Chen Hui, Yin Min, Yin Changchun, Deng Juzhi. Three-Dimensional Magnetotelluric Modelling Using Aggregation-Based Algebraic Multigrid Method [J]. Journal of Jilin University(Earth Science Edition), 2018, 48(1): 261-270.
[11] Cai Jianhua, Xiao Xiao. De-Noising of Magnetotelluric Signal in the Ore Concentration Area Based on Combination Filter [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(3): 874-883.
[12] Luo Tianya, Xiong Bin, Cai Hongzhu, Chen Xin, Liu Yunlong, Lan Huaikang, Li Zuqiang, Liang Zhuo. Magnetotelluric Responses of Two-Dimensional Complex Conductivity Structures [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(1): 215-223.
[13] Han Song, Liu Guoxing, Han Jiangtao. Deep Electrical Structure of Jinxian-Zherong Magnetotelluric Profile in South China [J]. Journal of Jilin University(Earth Science Edition), 2016, 46(6): 1837-1846.
[14] Yan Jiabin, Huang Xiangyu. Vector Finite Element Method [J]. Journal of Jilin University(Earth Science Edition), 2016, 46(5): 1538-1549.
[15] Qin Linjiang, Yang Changfu. Analytic Solution to the MT Responses of a Two-Segment Model with Axially Anisotropic Conductivity Structures Overlying a Perfect Insulator [J]. Journal of Jilin University(Earth Science Edition), 2016, 46(4): 1260-1267.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] YU Ping， LI Rui-lei， FU Lei， HAO Xue， ZHANG Xiang-jun，LIAN Guo-fen. Regional Tectonic Characteristics and Significance of North Harbin Area in Songliao Basin: Evidenced from Long Seismic Profiles[J]. J4, 2005, 35(05): 611 -615 .
[2] ZHANG Yuan-qing, SONG Bing-zhong, WANG Yu-fu, ZHANG Ning. Metallogenetic Rules and Prediction of Gold Deposits Around Tongshi Complex,Western Shandong Province[J]. J4, 2010, 40(6): 1287 -1294 .
[3] LI Jian-ping, LI Tong-lin, ZHANG Hui, XU Kai-jun. Study and Application of the TEM Forward and Inversion Problem of Irregular Loop Source over the Layered Medium[J]. J4, 2005, 35(06): 790 -0795 .
[4] GAO Song，SONG Ying，WANG Lin，JIANG Buxin. Study on the Screening and Characterization of Special Effective Bacteria of Degrading Thiuram in the Waterbody[J]. J4, 2006, 36(03): 455 -457 .
[5] ZHANG Feng-jun, LI Qing, MA Jiu-tong, YU Guang-ju. Experimental Study on Treatment of Furfural Wastewater with Membrane Distillation[J]. J4, 2006, 36(02): 270 -0273 .
[6] LU Shuang-fang, LI Ji-jun, XUE Hai-tao, XU Li-heng. Chemical Kinetics of Carbon Isotope Fractionation of Oil-Cracking Methane and Its Initial Application[J]. J4, 2006, 36(05): 825 -829 .
[7] DING Zhi-hong,FENG Ping,MAO Hui-hui. Research and Application of a Method Considering Runoff Distribution Through A Year During Partitioning Runoff into Abundant and Low State[J]. J4, 2009, 39(2): 276 -0280 .
[8] REN He-jun, LIU Na, GAO Song,ZHANG Lan-ying，ZHANG Yu-ling，ZHOU Rui. Degradation of Polychlorinated Biphenyls and Confirm of bphA1 Gene Core by Pseudomonas DN2[J]. J4, 2009, 39(2): 312 -0316 .
[9] Huang Qibo, Qin Xiaoqun, Liu Pengyu, Kang Zhiqiang, Tang Pingping. Applicability of Karst Carbon Sinks Calculation Methods in Semi-Arid Climate Environment[J]. Journal of Jilin University(Earth Science Edition), 2015, 45(1): 240 -246 .
[10] Xiong Xiaoliang，Sun Hongyue，Zhang Shihua，Cai Yueliang. Analysis of Condition of Ensuring High-Lift Siphon Drainage and Numerical Simulation of Choice of Optimum Diameter[J]. Journal of Jilin University(Earth Science Edition), 2014, 44(5): 1595 -1601 .
Copyright © Journal of Jilin University(Earth Science Edition), All Rights Reserved.
Tel: +86-431-88502374；13756165364　E-mail: xuebao1956@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd