Efficient Stripmap Sar Raw Data Generation Accounting For Trajectory Deviation And Antenna Pointing Errors At A Nonzero Squint Angle

In this paper, we present a stripmap-mode raw data generator that accounts for trajectory deviations and antenna pointing errors with a nonzero squint angle for an extended scene, which is more realistic for airborne SAR system. The raw data acquired under the acquisition Doppler (AD) geometry rather than a standard cylindrical reference system. The approach utilizes one-dimensional azimuth Fourier domain processing followed by range time -domain integration. It has a higher computationally efficiency than the time domain method. Some simulation results are finally presented to demonstrate the effectiveness of the proposed algorithm.