DFT beamforming for more accurate estimate of signalDOAwith application to improving DS/CDMA receiver performance
T.B. Vu · Electronics Letters · 2000
Discrete Fourier transforms (DFTs) may be used to create fixed orthogonal beams, and the receiver can then select the beam with the strongest desired signal to provide discrimination against interference. A more accurate method for locating the desired signal and its application in speeding up the adaptive convergence rate in a direct-sequence code division multiple access receiver are described.