Edge interpretation of potential field data with the normalized enhanced analytic signal

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• 作者：Yongming Yao ; Danian Huang ; Xianli Yu ; Bosen Chai
• 关键词：Edge detection ; Potential field ; Normalized enhanced analytic signal
• 刊名：Acta Geodaetica et Geophysica
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：51
• 期：1
• 页码：125-136
• 全文大小：9,437 KB
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• 作者单位：Yongming Yao (1) (2)
  Danian Huang (1)
  Xianli Yu (1)
  Bosen Chai (2)
  
  1. College of Geoexploration Science and Technology, Jilin University, Changchun, 130026, China
  2. School of Mechanical Science and Engineering, Jilin University, Changchun, 130022, China
  
• 刊物主题：Geophysics/Geodesy;
• 出版者：Springer Netherlands
• ISSN：2213-5820

文摘

Edge detection is a requisite task in the interpretation of potential field data. The existed edge detectors have the disadvantages that they cannot balance the edges of strong and weak amplitude anomalies simultaneously, or the identified edges of deep geological bodies are divergence and fuzzy. In order to overcome this problem, this paper presents the normalized enhanced analytic signal detectors to extract the edges, which can improve the disadvantages effectively. The normalized enhanced analytic signal detectors use different orders vertical derivatives of potential field data to normalize the different orders enhanced analytic signals. The new detectors are tested on synthetic gravity data, which can not only display the edges of shallow and deep geological bodies clearly at the same time, also can identify the edges more precisely and clearly. Finally, these detectors are demonstrated on real gravity and magnetic data from China, which can bring out more edge information.