Modeling and identification of an arbitrarily shaped scatterer using dynamic XFEM with cubic splines
Dynamic XFEM is used to identify scatterers by solving an inverse problem. A two-phase gradient-based divide-and-conquer approach is devised. Cubic splines are used for parametric definition of arbitrarily shaped scatterers. The host medium can be arbitrarily heterogeneous. The overall identification method is effective and amenable to parallel computing.
dynamic xfem cubic splines inverse problems inverse-scattering gradient-based minimization non-destructive testing