A Novel Algorithm for Wall Characterization in Through the wall Imaging based on Spectral Analysis

Estimation of wall parameters is a critical key for proper through the wall imaging. In this paper, a novel algorithm based on spectral analysis and wall reflection coefficients is presented and shown to be able to accurately estimate the essential parameters of the homogeneous wall. This method just requires S-parameter measurement and proposed formulation makes it useful for any realistic imaging problem. The formulation of the proposed algorithm is discussed along with its application to simulated and measured results