|Table of Contents|

High density electrical resistivity inversion based on sequential quadratic programming method(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2005年第03期
Page:
63-67
Research Field:
Publishing date:

Info

Title:
High density electrical resistivity inversion based on sequential quadratic programming method
Author(s):
WU Kai-jiangZHOU Qi-you
Department of Earth Sciences, Nanjing University, Nanjing 210093,China
Keywords:
electrical resistivity inversion finite element method parameter optimization sequential quadratic programming method
PACS:
P631.3+22
DOI:
-
Abstract:
This paper developed a feasible inverse algorithm based on sequential quadratic programming(SQP)method to deal with the inversion problems of high density electrical resistivity tomography prospecting. Based on the forward calculation of electrical po- tential for three-dimensional point source and two-dimensional earth with finite element method, an inversion algorithm was built with SQP method. According to the difference of electrode intervals, the objective function of parameter optimization was formed re- spectively. Applications of the algorithm to artificial resistivity models and real data indicated thatitis feasible in high density electri- cal resistivity inversion and has the advantages of no particular constraints to the initial parameter and high convergence speed. So this algorithm has great potential applications in the high density electrical resistivity tomography prospecting.

References:

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