转发式欺骗干扰时延控制算法  

Time Delay Control Method for GNSS Repeater Deception Jamming

作　　者：郑晨 王琼 姜昱 王晓宇[1] ZHENG Chen;WANG Qiong;JIANG Yu;WANG Xiaoyu

机构地区：[1]中国电子科技集团公司第二十研究所,西安710068

出　　处：《现代导航》2022年第2期79-84,共6页Modern Navigation

摘　　要：无人机卫星导航欺骗技术在现代导航战中越来越受到广泛的关注,其中转发式欺骗干扰因其无需获得信号结构的先验知识,在军码导航领域比生成式欺骗干扰更具使用价值。目前的军码转发信号普遍以转发接收天线点的位置坐标作为基础进行定点静止转发,在对无人机欺骗干扰时,信号置信度不高,干扰效果不佳。提出一种转发干扰时延算法,根据转发坐标需求计算不同卫星信号的时延量,可根据欺骗策略实时调整转发坐标,提高干扰成功率。最后通过实验验证,提出的时延算法得到的转发坐标误差在米级范围,验证了算法的正确性。UAV(Unmanned Aerial Vehicle)deception technology based on satellite navigation is attracting more and more attention in Modern Navigation Warfare.Among them,repeater deception jamming is more valuable than generative deception jamming in the field of military code navigation,because it does not need to obtain priori information of signal structure.At present,the repeater of military code signal is generally carried out fixed-point static forwarding based on the position coordinates of the receiving antenna.However,this method has low signal confidence and poor jamming effect when spoofing UAV.A time delay control method of repeater deception jamming algorithm is proposed in the paper.The time delay of different satellite signals is calculated according to the requirements of repeater coordinate.And the repeater coordinates can be adjusted in real time according to the deception strategy to improve the success rate of jamming.Finally,the experimental results show that the repeater coordinate error calculated by the proposed algorithm is in the range of meters,which proves the effectiveness of the proposed algorithm.

关 键 词：转发式欺骗干扰 时延控制 导航战 卫星导航 

分 类 号：P228[天文地球—大地测量学与测量工程]