Study on beamforming method for CDMA system
Cao Zhi-hua · Journal of Harbin University of Commerce · 2005
Based on the signal model and the multipath channel model of CDMA system, the steering vectors of multipaths of uses are estimated by using cold filtering method. A null pointing beamformer is designed by utilizing these steering vectors.The beamformer makes the null of the beam pattern point to the coming directions of the interference signals and multipaths, so it can suppress the multiple access interference and mutipath effects of CDMA system.