基于边界点拟合的单干扰源定位算法  

Jammer Localization Algorithm Based on Fitting Curve With Boundary Nodes

作　　者：方芳 叶春明 曾广军 FANG Fang;YE Chunming;ZENG Guangjun(School of Medical Information Technology,Anhui University of Chinese Medicine,Hefei 230037,China;Institute of Electronic Countermeasure,National University of Defense Technology,Hefei 230037,China;Institute of Information and Communication,National University of Defense Technology,Wuhan 430010,China)

机构地区：[1]安徽中医药大学医药信息工程学院,合肥230037 [2]国防科技大学电子对抗学院,合肥230037 [3]国防科技大学信息通信学院,武汉430010

出　　处：《传感技术学报》2019年第9期1402-1411,共10页Chinese Journal of Sensors and Actuators

基　　金：国防科技大学基金项目(zk17-03-41);安徽省科研基金项目(kj2016A400);安徽中医药大学自然重点项目(2018zrzd12)

摘　　要：针对无线多跳网络中干扰源的位置定位问题,提出一种基于边界点拟合的单干扰源定位算法。算法首先分析目标网络的边界节点和被干扰节点的位置分布,选择距离最近的节点对,构造一组虚拟边界节点。然后基于这组节点利用最小二乘法拟合圆的方式初步估算干扰区域,根据干扰范围对边界节点和被干扰节点的覆盖情况,不断更新虚拟节点集合,并重新拟合干扰范围以得到最终结果。仿真实验显示基于边界点拟合的定位算法不仅计算精确度较高,而且对不同分布类型网络、不同干扰半径、节点密度、干扰源位置等情况都有良好的适应性。A novel algorithm based on boundary nodes fitting is proposed for single jammer localization in multi-hop wireless networks.Firstly,node pairs are selected from jammed nodes and boundary nodes by analyzing their distance and location.Then with these node pairs the virtual boundary points are constructed to outline jamming range by least squares curve fitting method.The jamming range will be constantly adjusted to the updated virtual boundary points until the termination condition occurs.The results of experiment show this algorithm has better performance with different nodes’distribution,destiny and other conditions.

关 键 词：多跳无线网络 干扰源定位 边界拟合 干扰攻击 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]