Effective Antenna Pointing Angle Extraction of RPV SAR Based on LTI Analysis of Image Formation

This paper, extracts optimum boundary antenna pointing angle which is proposed for Synthetic Aperture Radar (SAR) mounted on Remote Pilot Vehicle (RPV) platform. In traditional SAR systems, echo model directly applied to the algorithm and no systematic analysis on both other radar subsystems nor antenna pointing angle deviations were done. Comparison between proposed method and traditional SAR systems, Linear Time Invariant (LTI) model of RPV SAR subsystems is presented and effects of antenna pointing angle deviations on image formation algorithm is analyzed. Several calculations and LTI simulations of point target scatterer on range-Doppler algorithm demonstrate the validity of proposed method and boundary limitation extraction.