Linearly-constrained adaptive beamforming using cyclostationary signal properties

This paper describes a method to incorporate linear constraints into an adaptive beamformer based on cyclostationary signal properties, previously proposed by the authors (see Proc. ICASSP´93, vol.IV, p. 284-287, Minneapolis, MN, April, 1993). The constraints allow an efficient exploitation of the spatial information available from the environment. This knowledge is used to prevent the beamformer from being captured by interferences showing the same cyclostationary properties as the desired signal and to control the sidelobe level of the radiation pattern