Nondestructive evaluation of materials using pulsed microwave interrogating signals and acoustic wave induced reflections

摘要

A class of inverse problems is formulated for the estimation of material dielectric parameters using reflections of pulsed microwave interrogating signals from moving acoustic interfaces in the dielectric. A model for acoustic pressure dependence of material constitutive parameters in Maxwell's equations is presented and analysed. Theoretical and computational findings for approximation and estimation are given.