Research on GNSS Anti-spoofing Interference Algorithm Based on Muti-receiver

Abstract

In recent years, satellite navigation has been widely and deeply applied in various fields. In order to ensure the security and reliability of navigation information, anti-spoofing interference has become very important. In this paper, we study the anti-spoofing interference algorithm based on pseudorange of dual receivers. We establish the real signal model and the spoofing signal model, and the double differences model of pesudorange are also established. Then, we construct two detection volumes and analyze different situations such as: two receivers are simultaneously or not deceived, and only one receiver is deceived. The simulation results verify the effectiveness of the algorithm and can effectively identify the spoof signal.