利用旋转双天线载波相位双差的欺骗干扰检测技术

有效的欺骗干扰检测是防止卫星导航接收机被欺骗干扰攻击的前提。提出了一种基于旋转双天线载波相位双差的卫星导航接收机欺骗干扰检测技术，在对接收机双天线匀速旋转时输出载波相位测量值进行载波相位双差处理后，利用广义似然比检验实现了对单一发射天线输出欺骗干扰信号的检测。进一步分析了旋转半径和数据长度对检测性能的影响，并与旋转单天线和天线阵载波相位双差欺骗干扰检测方法的性能进行了对比。最后，通过蒙特卡罗方法进行了仿真验证，结果表明了该检测方法和检测性能分析的正确性。

Spoofing detection technique using carrier phase double difference of spin dual-antenna

Effective spoofing detection is the premise to prevent satellite navigation receiver from spoofing. A spoofing detection technology for satellite navigation receiver based on carrier phase double difference of spin dual-antenna is proposed. After carrier phase double difference processing of the output carrier phase measured value when the dual-antenna receiver rotating at a constant speed, the detection of spoofing signal output by a single transmitter antenna is realized by using generalized likelihood ratio test. Furthermore, the impact of the rotation radius and data length on the detection performance is analyzed, and the performance of the detection method is compared with that of the carrier phase double difference spoofing detection method of the rotating single antenna and antenna array. Finally, the Monte Carlo simulation shows the correctness of the method and analysis.