| Citation: | LI Jincheng, GUO Deming. Two-dimensional resolution ability of GEO-UAV bistatic SAR[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(12): 2374-2380. doi: 10.13700/j.bh.1001-5965.2019.0611(in Chinese)
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Mounted on the Geostationary Earth Orbit (GEO) and Unmanned Aerial Vehiclel (UAV) platforms, the GEO-UAV bistatic Synthetic Aperture Radar (SAR) can achieve precise and quick observation on the interested areas. The two-dimensional resolution ability is important performance metrics. The analysis on the two-dimensional resolution ability of GEO-UAV bistatic SAR is given. First, the calculation method of bistatic SAR vectored two-dimensional resolution based on the gradient method is given. Then, the range resolution, azimuth resolution and the angle between the azimuth and range vector are calculated according to the configuration of the GEO-UAV bistatic SAR. Finally, based on the two-dimensional resolution ability of the system, a configuration criterion for GEO-UAV bistatic SAR is proposed, which is verified via experiments on simulated point targets. The proposed configuration criterion is beneficial to the system design of GEO-UAV bistatic SAR.
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