Abstract
Synthetic aperture radar(SAR) imaging for ground moving targets has important applications both in military and civil areas. Range cell migration (RCM) occurs after range compression and needs to be corrected before azimuth processing. Due to the difficulty of range cell migration correction (RCMC) in SAR, a corresponding correction method based on envelope correlation method (ECM) is proposed. the phenomenon of RCM is introduced for SAR imaging of stationary and moving targets in strip-map mode, then, RCM results are deduced, next, RCMC algorithm based on ECM are elaborated and illustrated, Finally, simulation results are given and analyzed, which validates feasibility and effectiveness of the ECM algorithm, the ECM only requires basic cross-correlation operation and has equivalent precision.
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