A method for correcting transmission phasing errors in an plurality of antenna elements is provided. The method includes receiving at least a first signal having a first frequency at the plurality of antenna elements at an angle of arrival (AOA). The method also includes identifying an actual fractional...http://www.google.ca/patents/US7970365?utm_source=gb-gplus-sharePatent US7970365 - Systems and methods for compensating for transmission phasing errors in a communications system using a receive signal