Abstract
Synthetic aperture radar (SAR) imaging, is a technique that allows us to remotely map the reflectivity of objects or environments with high spatial resolution, through the emission and reception of electromagnetic (EM) signals. Images obtained this way can be used for numerous applications, ranging from basic radar (an acronym for radio detection and ranging) functionalities, which are the detection of objects and their geographical localization, including the estimation of some geophysical properties of complex environments, such as certain dimensions, moisture content, roughness, density, etc. Owing to the frequency domains that are generally used by SAR devices, this active sensing system is independent of Sunlight conditions and is very weakly impacted by weather conditions. SAR systems mounted on airborne or satellite sensors rapidly image vast environments that are potentially difficult to access from field measurements. These characteristics make radar imaging systems a tool that is particularly well suited for remote sensing and they are used for a large number of applications in numerous sectors, such as geophysics, defense, environment surveillance, etc.
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