逆合成孔径雷达抗干扰能力分析

为了更好地进行逆合成孔径雷达（ISAR）干扰研究，利用ISAR运动补偿采用的经典算法——互相关算法、限幅互相关和积累互相关相结合算法，对ISAR的抗干扰能力进行深入分析，结合实际雅克飞机数据进行了干扰仿真实验。对这两种运动补偿算法下ISAR的抗压制干扰能力进行比较，给出了采用两种运动补偿算法使ISAR严重失真所需的输入干信比，结果表明限幅互相关和积累互相关相结合算法比较稳健。

Jamming Study for Inverse Synthetic Aperture Radar

In order to study the jamming against Inverse Synthetic Aperture Radar（ISAR）, the anti-jamming ability of ISAR is analyzed and simulated based on motion compensation arithmetics, which include correlation arithmetic, the arithmetic of restricting amplitude combining with accumulating correlation. The simulation tests on the real ISAR data are performed. The input jamming signal ratios are given by the two motion compensation arithmetics. The results show that the arithmetic of restricting amplitude combining with accumulating correlation is better than the correlation arithmetic when comparing the anti-jamming ability of ISAR using two arithmetics.