the movement of the terminals in mobile communication which leads to the continuous changing of the DOAs of all signals

the random steering vector errors and the covariance matrix estimation errors result in the degradation of the output SINR with conventional beamformer.As a new robust beamformer

QSP beamformer presents its good performance in that situation depending on its efficiency and validity.The simulations prove the stable output can be maintained in different environment with different impact factor.