基于功率倒置测向的自适应抗干扰方法  

An adaptive anti-jamming method based on power inversion direction finding

作　　者：李颖萍[1] 段艳丽[1] 樊昌周[1] 

机构地区：[1]空军工程大学信息与导航学院,陕西西安710077

出　　处：《微型机与应用》2015年第15期33-36,共4页Microcomputer & Its Applications

摘　　要：针对功率倒置算法形成零陷不深的问题,提出了利用功率倒置算法搜索成型后方向图中最深零陷点来向,估计干扰信号来向,继而主动改变阵列单元的权值使得天线方向图零点对准干扰来向,实现干扰抑制。仿真结果表明:该算法是可行的,并且能够达到更深的干扰抑制性能。In the power inversion algorithm, the depth of nulling produced may not be enough. To solve this problem, an adaptive anti-jamming method is proposed. The direction of the null point with the largest depth in the directional diagram after search formation by power inversion algorithm is used to estimate the incoming direction of jamming signal, which adjusts the weight of array elements to direct the null of antenna directional diagram to the jamming direction and suppress the jamming. The simulation proved the availability of the algorithm with enhanced suppression.

关 键 词：抗干扰 功率倒置算法 最小均方算法 方向图 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]