利用部分可信信号的导航终端欺骗干扰检测方法  

The Spoofing Detection Method of Navigation Terminal Using Partial Authenticated Signals

作　　者：王环宇 林红磊[1] 欧钢[1] 唐小妹[1] WANG Huanyu;LIN Honglei;OU Gang;TANG Xiaomei(Key Laboratory of Satellite Navigation Technology,College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学电子科学学院卫星导航技术重点实验室,长沙410073

出　　处：《电子与信息学报》2024年第10期4053-4061,共9页Journal of Electronics & Information Technology

摘　　要：导航信号认证服务处于初步部署阶段,认证信号对地覆盖重数无法满足独立定位授时需求,现有研究对这一阶段利用部分通过认证的信号,即可信信号,实现欺骗检测的方法关注度较低。针对这一现状,该文根据欺骗攻击原理,提出以可信信号为基准,基于可信信号伪距残差的欺骗检测方法,建立该场景下的欺骗检测模型,并分析影响所提方法检测性能的因素。经过仿真,在可信卫星数目为3颗、用户定位精度约10 m条件下,当欺骗导致的定位偏差为100 m时,该方法的平均欺骗检测概率可达0.96。此外,该文对算法欺骗检测盲区进行了分析,证明所提算法对于绝大部分欺骗导致的定位结果均有效。The navigation signal authentication service is in the initial stage.The coverage multiple numbers of the authentication signal to ground can not meet the requirement of independent positioning and timing.The existing research has paid little attention to the deception detection method based on partially trusted signals at this stage.Aiming at the status quo,according to the principle of spoofing attack,a spoofing detection method is proposed based on the pseudo-distance residual of the authentication signal,and the spoofing detection model is established in this scenario,and the factors that affect the detection performance of the proposed method are analyzed.After simulation,the average deception detection probability of the algorithm can reach 0.96 when the positioning deviation is 100 m,the positioning accuracy is about 10 m,and the number of trusted satellites is 3.In addition,the blind area of the algorithm is analyzed,and it is proved that the algorithm is effective for most of the deception positions.

关 键 词：抗欺骗 导航认证信号 接收机自主完好性监测 伪距残差 

分 类 号：TN967.1[电子电信—信号与信息处理]