Contrast source inversion algorithm applied in elastic wave imaging

In this paper we apply the linear synthetic aperture focusing technique (SAFT), and the nonlinear contrast source inversion (CSI) algorithm and the CSI algorithm with extended approaches, to reconstruct a complicated target immersed in water from the experimental elastic wave data. The inversion results, which are obtained in the acoustic wave case and the pressure and vertically polarized shear (P-SV) wave case, prove that the CSI algorithm with extended approaches is an accurate and efficient method for elastic wave imaging.