Coherent ISAR imaging based on phase matching processing of complex range profile for procession space target

摘要

In order to improve the inverse synthetic aperture radar (ISAR) imaging quality of precession space target, an algorithmbased on phase matching processing (PMP) of complex range profile envelope (CRPE) is proposed in this paper. Byphase matching processing, only the echo components located at the scattering points corresponding to the main body ofthe warhead can be coherently accumulated. The echoes of other scattering centers without any coherence will canceleach other when they are transformed. Hence, the focusing of scatters centers of the warhead main body is improved andthe interference caused by non-spin symmetric components is well suppressed. Simulation results confirmed theeffectiveness of the method.