GPS Anti-spoofing Algorithm Based on Improved Particle Filter

Abstract

In the GPS system, the signal received by the receiver is easily effected by spoofing jamming, which leads to some error in the measurement of pseudo range and is bad for navigation positioning. Therefore, this paper proposes GPS Anti-spoofing Algorithm Based on Improved Particle Filter. By the introduction of positioning error correction and M-estimation theory, simulation results and analyses verify that proposed algorithm achieves the purpose of eliminating spoofing jamming by modifying pseudo range error.