Abstract:In this paper beamforming and DOA estimation for multiuser are discussed in multipath circumstance. Decorrelating detector is adopted to detect multiuser. CSS (Cyclic Spatial Smoothing) algorithm is presented. The algorithm with spatial smoothing can keep array weight dimension unchanged. Its theoretical foundation is that cyclic propagation of the sampling signal covariance inverse matrix is equivalent to averaging of the covariance matrix. The estimated spatial signature is adopted to construct the covariance matrix for high resolution DOA estimation. The simulation results show that CSS has better performance for multiuser beamforming.
安毅; 吕昕; 高本庆. 多径环境中多用户波束形成与DOA估计[J]. 电子与信息学报, 2002, 24(11): 1499-1505 .
An Yi; Lu Xin; Gao Benqing. Beamforming and DOA estimation for multiuser in multipath circumstance. , 2002, 24(11): 1499-1505 .