SPACE-FREQUENCY ADAPTIVE PROCESSING BASED ON SUBSPACE TECHNOLOGY

When adaptive antenna array is applied to navigation receiver for anti-jamming, the traditional spatial algorithms cannot deal with broadband interference. Although space-time algorithm can resist broadband interference, it demands large amount of calculation and accurate delay, so this article use the space-frequency adaptive algorithm suppress broadband interference. Compared with the classical space-frequency PI algorithm, introducing subspace technique in frequency domain to further improve the ability of interference suppression. The effectiveness of the algorithm is verified by computer simulation.