Blind Adaptive Beamforming for a Global Navigation Satellite System Array Receiver Based on Direction Lock Loop

The adaptive beamforming algorithm can realize interference suppression and navigation signal enhancement, has been widely used. However, achieving high-precision real-time estimation of the direction arrival (DOA) parameters signals in strong-interference scenarios with low complexity is still a challenge. In this paper, blind for Global Navigation Satellite System (GNSS) array receiver based on lock loop proposed without using prior information DOA parameter. used tracking after suppression, which uses spatial correlation beam pattern to construct closed direction-tracking loop. value adjusted real time errors. A beamformer constructed results provide gain by forming satellite direction. This method improves accuracy dynamic adaptability while significantly reducing computational complexity. theoretical analysis simulation verify effectiveness algorithm.