The Stratton-Chu Integral with a Rough Facet Formulation for All-Scale Radar Sounder Simulations: Assessment with Reflectometry

Stratton-Chu radar simulations from coarsely-resolved digital elevation models (DEMs) can be accurately handled by polynomial phase approximations on the DEM facets. However, the DEM itself is only an approximation of the real terrain: a DEM is composed of planar facets and thus displays no roughnes...

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Bibliographic Details
Published inIEEE International Geoscience and Remote Sensing Symposium proceedings pp. 551 - 554
Main Authors Gerekos, Christopher, Haynes, Mark, Grima, Cyril, Blankenship, Donald
Format Conference Proceeding
LanguageEnglish
Published IEEE 17.07.2022
Subjects
Analytical models
Backscattering
Laser radar
Moon
Radar
Radar clutter
Reflectometry
Roughness
Simulation
Stratton-Chu
Uncertainty
Visualization
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ISSN2153-7003
DOI10.1109/IGARSS46834.2022.9884720

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Summary:Stratton-Chu radar simulations from coarsely-resolved digital elevation models (DEMs) can be accurately handled by polynomial phase approximations on the DEM facets. However, the DEM itself is only an approximation of the real terrain: a DEM is composed of planar facets and thus displays no roughness at scales below its resolution, which has important consequences on the simulated radargrams. To solve this problem, we have recomputed the linear phase approximation integral on a perturbed facet. We demonstrate the gain of fidelity over smooth-facet simulations by comparison with a real radargram. For the first time, we also apply reflectometry techniques to these simulated data, and compare it with the original output.
ISSN:2153-7003
DOI:10.1109/IGARSS46834.2022.9884720