Wavelet packet transform-based anti-jamming scheme with new threshold selection algorithm for GPS receivers

摘要

We propose a wavelet packet transform (WPT)-based adaptive predictor to cancel the jamming signal for global positioning system receivers. In addition, a new adaptive threshold selection algorithm, which exploits the information embedded in both time- and WPT-domains, is proposed. This threshold is used for the WPT de-noising algorithm to generate the reference signal for the adaptive predictor. Simulation results confirm that our method significantly outperforms one existing WPT-based anti-jamming scheme.