Antijamming method based on orthogonal codes jittered and random initial phase for SAR

Corresponding to the disability of Synthetic Aperture Radar (SAR) to suppress Terrain Scattered Jamming, this paper proposes an anti-jamming method based on jittering orthogonal codes and random initial phase. Orthogonality between neighbor slow moments´ pulse codes leads to disability of jamming to get coherent match filtering gain of range direction, at the same time, random initial phase at each slow-moment leads to disability of jamming to finish azimuth match filtering. Experiment testifies the ability of this method to suppress jamming from the directions of range and azimuth.