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2013 (Vol. 6, Issue: 05)
Article Information:

Implementation of Modified Conjugate Gradient Algorithm and Analysis of Convergence in Electromagnetic Tomography Lab System

Li Liu and Wang Zhan-jun
Corresponding Author:  Li Liu 

Key words:  Convergence, electromagnetic tomography, modified conjugate gradient algorithm, , , ,
Vol. 6 , (05): 889-894
Submitted Accepted Published
October 30, 2012 December 28, 2012 June 25, 2013
Abstract:

Electromagnetic tomography technology is a new process tomography technology. The aim of this study is to develop a new image reconstruction algorithm suitable to electromagnetic tomography and verify its convergence. The advantages and development of electromagnetic tomography technology and image reconstruction algorithms are introduced briefly. Based on conjugate gradient algorithm, modified conjugate gradient algorithm for Electromagnetic Tomography (EMT) is proposed. Convergence of the modified conjugate gradient algorithm is analyzed. In the light of the lab electromagnetic tomography system, modified conjugate gradient algorithm for reconstructing images is verified. By evaluation of image error and the relevance, regularization algorithm, Landweber algorithm, conjugate gradient algorithm and modified conjugate gradient algorithm are compared. It can draw the conclusion that for different flow patterns, modified conjugate gradient algorithm is superior to other algorithms in the 8 coils electromagnetic tomography lab system.
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  Cite this Reference:
Li Liu and Wang Zhan-jun, 2013. Implementation of Modified Conjugate Gradient Algorithm and Analysis of Convergence in Electromagnetic Tomography Lab System.  Research Journal of Applied Sciences, Engineering and Technology, 6(05): 889-894.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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