Journal of Northeastern University Natural Science ›› 2019, Vol. 40 ›› Issue (4): 563-568.DOI: 10.12068/j.issn.1005-3026.2019.04.021

• Resources & Civil Engineering • Previous Articles     Next Articles

Fast Probability Tomography of Gravity Anomaly Data Based on Taylor Series

HOU Zhen-long1, 2, WANG En-de1, 2   

  1. 1. School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, China; 2. Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang 110819, China.
  • Received:2017-09-18 Revised:2017-09-18 Online:2019-04-15 Published:2019-04-26
  • Contact: HOU Zhen-long
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Abstract: In order to improve the data tomography efficiency in the gravity exploration,gravity anomaly data from the geophysical exploration were processed by fast three-dimensional tomography. The algorithm of Taylor series was used for the prism unit based on the related probability tomography theory, in which the calculation model of anomaly data were redefined to obtain new geometric functions. The tomography method reduces the calculation amount and the number of iterations by series expansion and integral. In the theoretical model test, it is proved that the proposed method has good tomography ability and anti-noise characteristic. The efficiency analysis shows that the algorithm can greatly shorten the calculation time of the geometric function matrix and improve the imaging efficiency. Fast tomography was applied for the real gravity anomaly data of Vinton Dome, the location of geological body could be shown well, which verifies the algorithm feasible.

Key words: gravity anomaly data, geometrical function, fast tomography, Taylor series, computational efficiency

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