一种利用多站角度融合抗干扰方法研究

随着自卫式干扰技术的不断发展,数字储频(DRFM)技术广泛地应用到现代干扰装备中,数字储频技术能够对雷达信号进行多次复制转发干扰,在自卫式干扰场景中形成主瓣距离欺骗干扰,对目标检测和跟踪带来了困难。文中提出一种利用雷达网络内其他节点采用与被干扰雷达同样的工作频点被动接收,对干扰源进行测角处理,通过有源探测和无源测角融合处理实现主瓣内其他虚假目标的剔除。文中最后分析了该方法的优点和缺点,并与传统的测向交叉定位的性能相比较,给出了不同方法使用的适用范围。

A Study on Anti-jamming Method Using Angle Fusion from Multi-site Radars

With the development of self-protection technology, digital radio frequency memory (DRFM) is widely used in the modern jammers, which can sample the radar signals, modulate the samples, and feed back to radars. The self-protection jammers bring a lot of difficulties to radar detection and tracks. In this paper, a method using the angle measurement utilizing another radar in the network to eliminate the false target in the main lobe is proposed, the proposed method which combines the active measurement in the main site and the passive measurement from another perspective by another radar site. The advantage and disadvantage of the method is analyzed as well, and the comparison of locating performance between the proposed method and the traditional cross locating method is also presented as well as the limitations of these methods.