On SAR Imaging through the Earth's Ionosphere

摘要: We analyze the effect of dispersion radio waves in Earth's ionosphere on performance (image resolution) spaceborne synthetic aperture radars (SARs). describe electromagnetic propagation framework a scalar model for transverse field subject to weak anomalous due cold plasma. Random contributions refraction index are accounted by Kolmogorov ionospheric turbulence. A key consideration used when analyzing statistics is normalization probability distributions long distances. The phenomena, both deterministic and random, shown affect azimuthal resolution SAR sensor stronger than range resolution; also, randomness appears weaker that baseline dispersion. Specific quantitative estimates provided some typical values parameters. Probing two carrier frequencies identified as possible venue reducing distortions.