Signal processing circuit for communicating with a modular mobile satellite terminal and method therefor

摘要

A signal processing circuit for satellite communications signal includes a first one-dimensional digital beam forming circuit (176) for forming a beam signal (144) in a first direction and a second one-dimensional digital beam forming circuit (180) for forming a beam (148) in a second direction. A direction filtering circuit (178) is coupled between the first one-dimensional digital beam forming circuit (176) and the second one-dimensional digital beam forming circuit (180). The filtering circuit (178) determining a communications signal direction of the satellite communications signal and tunes the filter to reduce a filter bandwidth and a frequency range of said beam signal prior to processing through the second one-dimensional digital beam forming circuit (180). <IMAGE>