Effects of ionospheric high-order dispersion and multiple scattering on space-based SAR imaging

The interest in the use of space-borne SAR at low-frequency for collecting earth biomass information such as forest structure, soil moisture and soil type has been increased. It is crucial to understand the potential effects of radio wave propagation due to the ionospheric perturbation. In this paper, we present some effects of ionosphere on space-borne SAR imaging, especially the higher-order dispersion of the background and random scattering of irregularities are considered. Both the analysis and numerical simulation have been investigated to get some useful conclusions.