A method for enhanced Capon beamforming includes the steps of providing a sensor
array including a plurality of sensor elements where an array steering vector corresponding
to a signal of interest (SOI) is unknown. A covariance matrix fitting relation
is bounded for the unknown array steering vector by constraining the array steering
vector using a constant norm and a spherical uncertainty set. The matrix fitting
relation is then solved to provide an estimate of said array steering vector.
