关键词: 交叉眼, 单脉冲雷达, 矩形阵, 调制参数, 最优布局因子

Abstract: The cross-eye jamming is one of the most effective ways to interfere the monopulse radar. In order to solve the problem of the strict tolerance and the limitation of the range of the two-point source retrodirective cross-eye, the rectangular array retrodirective cross-eye jamming is introduced. The mathematical model of rectangular array retrodirective cross-eye jamming is deduced by expansibility analysis. The general formulas of the indication angle and modulation parameters of monopulse radar and the layout of jamming loops on the cross-eye jamming effect are obtained. The influence of modulation parameters and the layout of jamming loops on the cross-eye jamming effect is analyzed. With the guidance of the optimal layout factor, different layout modes of rectangular arrays are studied and compared with the two-point sources retrodirective cross-eye. The simulation results show that the rectangular array cross-eye jamming method has the best jamming effect when the angle between the two jamming loops is 50°. The angle offset and the range of interference coverage caused by the rectangular array retrodirective cross-eye jamming are better than the two-point source cross-eye jamming.

Key words: cross-eye, monopulse radar, rectangular array, modulation parameter, optimal distribution factor