四通道单脉冲测角抗主瓣干扰技术研究

摘要

Since the measurement accuracy of acquisition and guidance radars is threatened by main⁃lobe jammers,a technique of four⁃channel monopulse based on digital array radar is presented for anti⁃main⁃lobe jamming.A delta⁃delta channel is added on the base of traditional three⁃channel monopulse to avoid the effects of main⁃lobe jamming,which significantly improves the detectability of targets within a beam width.The simulation and analysis demonstrate the effectiveness of the method.Another simulation of angular accuracy un⁃der different SNRs shows that the method is realizable in engineering.%总结了常规雷达抗主瓣干扰的现状，针对探测制导雷达面临主瓣干扰的威胁，提出一种基于数字阵列雷达体制的四通道单脉冲测角的抗主瓣干扰技术。该技术在传统单脉冲测角方法的基础上增加了一个双差通道，通过将波束方向对准主瓣干扰，消除干扰对目标角度测量的影响，有效提高了目标检测能力。对四通道单脉冲测角方法进行了仿真分析，验证了该方法的有效性，同时对该方法在不同信噪比下的测量精度进行了仿真实验，说明该方法具有工程可实现性。