Polarimetric Through-the-wall imaging

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Abstract

A novel full polarimetric beamforming algorithm for Through-the-wall imaging (TWI) is proposed in this paper. The far field layered medium Green's functions are incorporated in the beamformer for the quad-polarizations (VV, HV, VH and HH). Due to the incorporation of the layered medium Green's function, the imaging algorithm not only takes into account the wall reflection, bending, and delay effects but also accounts for the complex EM scattering mechanism due to the presence of the wall. By employing the Green's functions, the solving of a nonlinear equation, needed to find the wave propagation path, is avoided. Similar method can also be generalized to multilayered composite walls such as a hollow-core concrete wall. Simulation results show that the proposed method can provide high quality focused images for TWI applications. © 2010 IEEE.

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Zhang, W., Thajudeen, C., & Hoorfar, A. (2010). Polarimetric Through-the-wall imaging. In Symposium Digest - 20th URSI International Symposium on Electromagnetic Theory, EMTS 2010 (pp. 471–474). https://doi.org/10.1109/URSI-EMTS.2010.5637437

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