针对卫星导航接收机的欺骗干扰研究

Spoofing Pattern Research on GNSS Receivers

针对卫星导航接收机的欺骗干扰是一种能以较低功率实现有效干扰的相关干扰技术。目前公开的文献均只定性地说明可以通过较高的欺骗信号功率牵引目标接收机跟踪环路,但并未进行精确的定量分析。为解决欺骗干扰在实际应用中的功率控制问题,本文通过建立接收机跟踪模型,理论分析了欺骗信号对接收机实现成功牵引所需满足的信号功率条件。最后通过软件接收机仿真和实际导航接收机实验,验证了理论分析的正确性。

Spoofing jamming to GNSS receivers is a coherence technique for implementing conduct effective jamming with relatively lower transmission power. All the documents published only qualitatively describe that the spoofing signal could induce tracking loops of target receivers with some higher power without quantitative analysis. By modeling receiver tracking loops, the signal power condition of successful induction for the target receiver is analyzed in this paper. Software receiver simulations and real navigation receiver experiments results have demonstrated the validity of the quantitative analysis conclusion.