18 October 2001 Analysis of polarimetric IR phenomena for detection of surface mines
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It has long been recognized that surface-laid land mines and other man-made objects tend to have different polarization characteristics than natural materials. This fact has been used to advantage in a number of mine detecting sensors developed over the last two decades. In this work we present the theoretical basis for this polarization dependence. The theory of scattering from randomly rough surfaces is employed to develop a model for scattering and emission from mines and natural surfaces. The emissivity seen by both polarized and unpolarized sensors is studied for smooth and rough surfaces. The polarized and unpolarized emissivities of rough surfaces are modeled using the solution of the reciprocal active scattering problem via the second order small perturbation method/small slope approximation(SPM/SSA). The theory is used to determine the most suitable angle for passive polarimetric IR detection of surface mines.
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Ibrahim Kursat Sendur, Ibrahim Kursat Sendur, Joel Tidmore Johnson, Joel Tidmore Johnson, Brian A. Baertlein, Brian A. Baertlein, "Analysis of polarimetric IR phenomena for detection of surface mines", Proc. SPIE 4394, Detection and Remediation Technologies for Mines and Minelike Targets VI, (18 October 2001); doi: 10.1117/12.445467; https://doi.org/10.1117/12.445467

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