文档介绍：Discussions of satellite navigation countermeasures on spoofing and anti-spoofing techniquesHU Yan-feng, Bian Shao-feng, Ji Bing, Li Hou-puDepartment of Navigation Engineering, Naval University of Engineering, Wuhan Hubei 430033, Chinadaohang_yanfeng@, sfbian@, jibing1978@, ******@Abstract: According to the three principles: modes of interference signal generation, the stages of implementation and launching means, this paper has a classification and brief introduction to spoofing modes. Besides, it has a inductive analysis on anti-spoofing techniques, on the basis of the four stages: signal processing phase in layer encryption, signal processing phase in RF front-end, signal processing phase in basebandandIF band, and navigation information output stage. Based on the attack and defense dialectical relationship between spoofing and anti-spoofing, it has an analysis of the limitations of the current anti-spoofing techniques. The analysis methods and conclusions of this text can have a certain guiding significance to further study on spoofing techniques and anti-spoofing :SatelliteNavigation Countermeasures; Spoofing; Anti-Spoofing; Attack and Defense; Limitations卫星导航对抗之欺骗与反欺骗技术探讨胡彦逢,边少锋,纪兵,李厚朴海军工程大学导航工程系,湖北武汉,中国,430033daohang_yanfeng@, sfbian@, jibing1978@,lihoupu1985@【摘要】按干扰的产生方式、实施阶段、发射方式等原则对欺骗干扰模式进行分类并做出简要介绍,按信号层加密处理阶段、射频前端处理阶段、基带中频信号处理阶段、导航信息输出阶段等四个阶段对