Communications system using paa and lms filter for removing jamming signals

Abstract

Disclosed is a system for communications that includes a PAA that receives communication signals from satellites and also receives jamming signals. A pre-beam formatting block receives the PAA's output and forms preliminary desired beams and omni beams. A first LMS filter block receives the preliminary desired beams and the omni beams and outputs filtered beams that are substantially free of the jamming signals. A beamforming block receives the filtered beams and provides directed filtered beams to a max select block. The max select block outputs selected directional beams that are highly correlated with the communications signals from the satellites. The selected directional beams are substantially free of the jamming signals. The system can include a second LMS filter block that receives the selected directional beams and the omni beams. The second LMS filter block further removes any jamming signals from the selected directional beam.