Patent ID: 9709681
Date: 2017-07-18
CPC Classifications: G01S

Claim:
1. A method for adaptive processing in a navigation system comprising: applying, at a receiver, temporal filtering to each of a plurality of input streams received at a plurality of antennas of the receiver to provide a plurality of filtered input streams; generating, at the receiver, a covariance matrix representing the plurality of received input streams; generating, at the receiver, a plurality of correlation results, each representing one of the plurality of filtered input streams; and calculating, at the receiver, a beam-forming weight for each received input stream via an optimization process that has at least one parameter determined based on the covariance matrix and at least one constraint determined based on the plurality of correlation results, wherein the at least one parameter during the optimization process provides a spatial null in a direction of an interfering signal above a noise floor and the at least one constraint during the optimization process provides a spatial null in a direction of another interfering signal below the noise floor.