针对弹载干扰装备干扰功率较小,难以对逆合成孔径雷达(Inverse Synthetic Aperture Radar, ISAR)形成有效的干扰,文中分析了ISAR成像原理,针对ISAR成像过程中包络对齐这一环节,提出了一种基于散射点模型的压制性干扰信号,该信号可破坏ISAR成像过程中目标回波的包络对齐,进而形成多种干扰效果。该信号在进入ISAR后可获得较大的脉冲压缩增益,能以较小的干扰功率达到较好的干扰效果。理论分析与仿真实验验证了该种干扰信号对ISAR干扰的有效性。

According to the missle jamming equipment's power is lower,it is difficult to form an effective jamming to ISAR. The principle of ISAR imaging is analyzed, aim at range alignment of ISAR imaging,a barrage jamming signal based on scattering point model is designed in the paper. The signal can destroy range alignment of ISAR image, come into being multi-jamming effectiveness. Further more, biggish pulse compression gain can be obtained in ISAR system, and then more efficient jamming effectiveness is obtained with lesser jamming power. The effectiveness of the signal to ISAR jamming has been valdated in the theory analysis and simulation experiments.