对调频斜率极性捷变SAR间歇采样转发

研究了间歇采样转发干扰对调频斜率极性捷变合成孔径雷达（chirp rate polarity jittered synthetic aperture radar, CRPJ SAR）的干扰效果。建立了CRPJ SAR间歇采样转发干扰信号模型，通过推导得到干扰的成像输出以及假目标位置和幅度的解析计算公式。结果表明间歇采样转发干扰不仅能够在距离向形成等间隔分布的多阶假目标，而且当假目标阶数不为零时，在同一距离向存在3个沿方位向等间隔分布的假目标。仿真验证了理论分析的正确性。

Analysis of jamming effect on intermittent sampling repeater jamming to CRPJ-SAR

Jamming effect on intermittent sampling repeater jamming to chirp rate polarity jittered SAR (CRPJ SAR)is investigated. The intermittent sampling repeater jamming model of CRPJ SAR is built, the imaging result of jamming is derived, and analytical formulas to calculate the locations and amplitudes of false targets are given. The image result shows that the jamming can produce multiple order false targets in range direction, and when the order is unequal to zero, there are three false targets which spreads along the cross range direction in equal interval at the same range direction. The correctness of the theoretical analysis is validated further by simulation experiments.