The Role of Multipath Propagation in Indoor Single-Frequency RF Imaging

This paper addresses the single-frequency radio frequency imaging in the presence of multipath propagation, relevant to indoor sensing applications. The imaging is tackled in a 2-D scenario and formulated as a linearized electromagnetic inverse scattering problem under the Born approximation. Analytical ray-based and full-wave numerical models are exploited to evaluate the incident field and the Green’s function, which are the key quantities for the kernel of the relevant scattering integral equ