Study on Iterative Regularization Method in Ultrasonic Imaging Reconstruction for Concrete´s Testing

Demands for the non-destructive techniques (NDT) developing for concrete structures has greatly increased with the growing concern about the deteriorating condition of the Worldpsilas infrastructure. But traditional image reconstruction algorithms or other inspecting methods can only reconstruct qualitative images. In this paper, the modified landweber iterative regularization method was applied to reconstruct the imaging on ultrasonic traveling speed as to the concretepsilas internal estimating. Experimental results show that this modified algorithm has stable reconstruction performance with high accuracy and anti-disturbance ability.