Interference Suppression for Global Positioning System Using Self-Coherent MUSIC
In this paper, a two stage GPS anti-jamming processor based on subspace and self-coherent property of the C/A code is proposed. Firstly, the array received signals are projected onto the interference orthogonal subspace to suppress interferences. Then Direction Of Arrival (DOA) of GPS signal is obtained by self-coherent MUSIC and the free interference signals are synthesized by self-coherent estimated DOA. The new anti-jamming method could play the respective advantages of each stage. Simulation experiment results show the effectiveness of the new algorithm.