Probability Weighted Conjugate Gradient Algorithm for Concrete Ultrasonic Tomography Imaging

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2015, Vol. 32 ›› Issue (3): 293-298.

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Probability Weighted Conjugate Gradient Algorithm for Concrete Ultrasonic Tomography Imaging

LIU Jianjun¹, XU Lingzhou²

1. College of Science, China University of Petroleum(Beijing), Beijing 102249, China;
2. College of Science, China University of Petroleum(Huadong), Qingdao 266580, China

Received:2014-05-08 Revised:2014-10-31 Online:2015-05-25 Published:2015-05-25

Abstract

Abstract: In order to improve efficiency and resolution of inversion and computation in concrete tomography, we propose a probability weighted conjugate gradient algorithm, in which weight is added on imaging unit instead of equation. IART algorithm is adopt to determine weight factor and initial value. Simulation examples and a real physical experiment show that the algorithm is of fast convergence, feasibility and validity.

Key words: reconstruction algorithm, probability weighted, conjugate gradient, concrete, tomographic imaging

CLC Number:

TG115.28

LIU Jianjun, XU Lingzhou. Probability Weighted Conjugate Gradient Algorithm for Concrete Ultrasonic Tomography Imaging[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2015, 32(3): 293-298.

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Probability Weighted Conjugate Gradient Algorithm for Concrete Ultrasonic Tomography Imaging

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