Interference Suppression Method for Space-time Navigation Receivers Based on Householder Multistage Minimal Module Cascaded Canceller

Due to suppression the influence of impulsive noise spikes (outliers) from desired signal direction of arrival in Global Positioning System (GPS) signals, the Householder-based multistage minimal module cascaded canceller is proposed. The method substitutes the weights of the Householder-based multistage Winner filter for the minimal module weights, which have the minimal module of the samples quotient, and adoptes in space-time anti-jamming processing in GPS receiver. The method has the prominent ability of restricting the influence of the impulsive noise spikes (outliers) from desired signal direction of arrival to adaptive weights, and the ability of low complexity, also fast convergence. Computational simulation results indicate the method achieves better fast convergence ability and a good performance in reducing the influence of the impulsive noise spikes (outliers) to adaptive weights.