Research on the wide nulling algorithm
Yang Shen-yuan · Applied science and technology · 2006
The adaptive beamforming algorithm can aim at the direction of jammer automatically.But when the antenna platform vibrates or interference moves quickly,it is possible that the mismatch occurs for adaptive weight and data due to the perturbation of the inteference location.Here an adaptive beamforming null widening technology is deduced by utilizing the numerical method to korrelated variance matrix via the rotation of the steering vector.Because the nulling widens,even when the direction of the interference and the data dismatch,the interference can still be suppressed so that the robustness of the algorithm is raised.