摘要
研究生成式欺骗干扰,一方面可以克服转发欺骗干扰的缺陷,另一方面可以为抗欺骗干扰提供思路。将欺骗干扰划分为信号同步和欺骗策略两步,信号同步包括对真实信号参数的估计,并使欺骗信号与真实信号到达目标接收机天线时参数对准,探讨了电离层延迟对信号同步的影响。码相位对准后,增加欺骗信号功率和码率,不断剥离真实信号相关峰实现欺骗干扰,并针对实现剥离真实信号相关峰所需的信号功率条件进行了定量研究,最终接收机跟踪环路跟踪上欺骗信号。仿真表明,生成式欺骗干扰能有效欺骗目标接收机。
Studying GPS generated spoofing attacks, on one hand it can overcome the shortcomings of repeater spoofing at- tacks, on the other hand it can provide ideas for anti-spoofing strategies. The attack includes two stages ： signal synchronization and the strategy of spoofing. The signal synchronization includes estimation of the authentic signal＇ s parameters and makes pa- rameter alignment when the spoofing signal and authentic signal arrive at the antenna of the target receiver. This paper ex- plored how the ionospheric delay influenced the signal synchronization. Via increasing the spoofing signal＇ s power and code rate, it could strip the correlation peak of the authentic signal gradually. Besides, it analyzed＇ the signal power condition of successful spoofing quantital：ively. Finally, the tracking loops tracked the spoofing signal. The simulation shows that the gener- ated spoofing attack can spoof the target receiver effectively.
出处
《计算机应用研究》
CSCD
北大核心
2016年第8期2405-2408,共4页
Application Research of Computers
基金
国家自然科学基金资助项目(61403065)
四川省基础科研计划资助项目(2015JY0084)
国家教育部博士点基金资助项目(20120185120034)
中央高校基本业务费资助项目(ZYGX2011J130)
关键词
欺骗干扰
信号同步
功率条件
相关峰
spoofing attacks
signal synchronization
power condition
correlation peak
