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oa SAR Data Spatial Resolution Enhancement for Environmental Monitoring Tasks
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, International Conference of Young Professionals «GeoTerrace-2023», Oct 2023, Volume 2023, p.1 - 5
Abstract
Environmental monitoring is a very important field nowadays, as it allows for disaster prevention, fire damage assessment, snowmelt forecasts, etc. All this tasks heavy rely on the quality of the satellite data. Radar data is a fairly new approach which allows to retrieve land surface information in a cloudiness condition and even at night. One of the main quality parameters of satellite images is spatial resolution, which stands for how well different small objects differentiate on the image itself. Thus, satellite SAR data spatial resolution enhancement is an important modern task. In this paper a method for synthetic-aperture radar’s (SAR) data spatial resolution enhancement is given, which is based on the fusion of two low-resolution source images into a single one high-resolution image. Radar data retrieved in different polarization modes was converted into unified physical land surface property – dielectric permittivity, using the well-known Oh radar backscattering model. Converted images were fused into a single high-resolution image and the spatial resolution of the result was quantitatively evaluated using the MTF approach.
