An Algorithm for Coherent Interference Beamforming Based on Uniform Circular Array

A mehtod of coherent interference beamforming based on the uniform circular array(UCA),namely the MODE-TOEP beamforming algorithm was proposed.In the algorithm the mode-space conversion was carried out to the output signals of UCA,based on which a Toeplitz matrix could be reconstructed and then the eigenspace-based(ESB) beamforming was fulfilled,which can suppress the coherent interference effectively.Simulation results show that MODE-TOEP beamforming algorithm not only have a better performance even in the case of little snapshots and a low SNR,but also possess the powerful robustness while the pointing errors being in existence.