Distorted Iterative Step-Wise Approach for Plasma Microwave Imaging Profiling

The inverse scattering problem (ISP) at hand involves reconstructing the dielectric profile of a slab through single-view multi-frequency scattered field data. This problem, also known as dielectric profiling, is non-linear and ill-posed. The proposed iterative method exploits both transmitted and reflected scattered field measurements and updating of the Green function and the background field at each iteration. The results shows that the proposed iterative technique is considered to be a prominent quantitative reconstruction algorithm for addressing profiling for a class of lossless plasma profiles, which cannot be reconstructed via state-of-the-art available model-based inversion approaches.