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An extension of compressed sensing (CS)-based millimeter-wave imaging techniques from two- to three-dimensional (2-D to 3-D) is presented. The idea is to study the reduction in the minimum number of receivers with respect to standard synthetic aperture radar (SAR) imaging to accurately recover the geometry of the object-under-test. 3-D CS main drawback is the increased calculation time with respect...
Fast and accurate radar imaging techniques are mostly based on Fourier-based processing. While for monostatic setup these methodologies are widely used, multistatic systems make Fourier-based imaging more challenging: i) k-space is not uniform, requiring multidimensional interpolation methods, and ii) image is distorted when the incident spherical wave is approximated by a plane wave. This work overcomes...
Current state-of-the art active millimeter wave radar systems for personnel inspection are based on monostatic or quasi-monostatic configurations that can misrepresent areas of the target when the specular reflection is oriented away from the incident direction. This paper analyzes a fully multistatic mm-wave imaging architecture for human body screening. Transmitters placed off the receiving aperture...
An error characterization tool is presented in this contribution to study the effect of mechanical and positioning errors in the near-field to far-field transformation and the computation of the aperture field processes in different planar measurement setups. Validation of the error simulation tool is made by comparison of the results with a set of measurements in a planar near-field range.
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