Space-Time Adaptive Processing for GPS Anti-Jamming Receiver
Hongwei Zhao, Baowang Lian, Juan Feng · Physics Procedia · 2012
A space-time adaptive processing (STAP) algorithm which can reject interference in spatial domain as well as temporal domain has been widely used in GPS anti-jamming system. According to the characteristic which GPS signal power is far less than the interference signal power, we adopt the subspace orthogonal algorithm in the space-time blind adaptive beamforming. Computer simulation results show that the algorithm can produce filter weight coefficient adaptively in both a simplex spatial filtering and STAP, which reject interference effectively. Simulation results also indicate that using this algorithm, STAP can reject interference of temporal and spatial signal at the same time without GPS signal degradation.