逆合成孔径雷达(ISAR)在军事领域的应用越来越广泛,研究对其有效的干扰方法非常必要。文中结合目前ISAR及干扰机典型参数对ISAR的压制干扰进行了理论分析;基于实测数据对工作在瞄准、阻塞和扫频方式下的噪声调频干扰进行了仿真,比较分析了干扰效果;讨论了瞄频误差、干扰带宽对干扰效果的影响。理论与仿真实验表明,虽然ISAR具有很高的成像处理增益,但由于要经过复杂的运动补偿,噪声压制干扰在一定条件下可以达到较好的效果。

With the increasing application of ISAR in military filed,it is necessary to work out efficient countermeasures. In this paper,by considering typical parameters of jammer barrage jamming has been analyzed theoretically,and different modes of noise FM jamming are simulated based on real data,which include home-on,barrage and sweeping mode.Jamming effects have been compared and analyzed.The influence of aiming error and bandwidth on jamming effect is discussed.The theory and simula- tion results show that though ISAR has high processing gain,noise jamming can be effective due to complicated motion compensa- tion for ISAR.

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