Spoofing Detection Technique Based on Carrier Phase Double Difference of Spin-Antenna

Effective spoofing detection is the premise for GNSS receiver carrying out spoofing suppression, preventing the occurrence of positioning, velocity, and timing information errors. A spoofing detection technique for GNSS receiver is proposed based on carrier phase double difference of a Spin-Antenna. After translational motion elimination and non-related differential processing, the carrier phase value of the uniform rotation of the receiver antenna can be used to realize the detection of single transmit antenna output spoofing signal by generalized likelihood ratio test. Furthermore, the impact of rotation speed, radius, and the length of data on detection performance is analyzed. The results show that increasing the length of data is the inevitable choice for improving detection performance. A non-detection zone is defined for global detection performance by comparing and limiting the decrease in the detection performance. A Monte-Carlo simulation illustrates the correctness of the method and analysis.