ELECTROMAGNETIC AND ELASTIC-WAVE SCATTERING AND INVERSE SCATTERING APPLIED TO CONCRETE

Electromagnetic and elastodynamic scattering and inverse scattering te chniques are combined to provide a better understanding of wave propag ation and obstacle imaging in concrete. In particular we propose an el ectromagnetic inversion algorithm for ground probing radar data to inc lude information about the dipole moment of the antenna; a new elastod ynamic inversion scheme is even capable of processing the complete pre ssure and shear wave information as contained in the components of the displacement vector simultaneously, where we compute the necessary sy nthetic data with the numerical EFIT code (Elastodynamic Finite Integr ation Technique) as extended to statistically inhomogeneous media in o rder to validate the inversion algorithm. (C) 1997 Published by Elsevi er Science Ltd.