Effective Method of Real-Time Motion Compensation for Airborne Synthetic Aperture Radar System

Abstract

Aircraft inevitably experience motion caused by the flight environment in airborne synthetic aperture radar (SAR) systems. Therefore, motion compensation is essential. The real-time motion method is vital for high-resolution SAR image formation and onboard SAR signal processing. In this paper, an effective implementation scheme for a radar-timing signal generator is presented. This paper also describes a motion prediction method suitable for airborne SAR systems. The performance of the proposed real-time motion compensation scheme was evaluated using a captive flight test.