BEAMFORMING ALGORITHM OF DIAGONAL LOADING BASED ON MATRIX DECOMPOSITION
会议名称：《2011 4th IEEE International Conference on Broadband Network and Multimedia Technology》
会议日期：2011年
学科分类：11[军事学] 0810[工学-信息与通信工程] 1105[军事学-军队指挥学] 08[工学] 081002[工学-信号与信息处理] 110503[军事学-军事通信学]
基 金：Shaanxi Technology Committee Industrial Public Relation Project“The integral solutions of indoor MIMO key technology”(2010k06-03) Shaanxi Technology Committee Industrial Public Relation Project“Comprehensive Solutions of forward multi-user MIMO Technology in distributed wireless communication systems”(2010K01-074) Shaanxi province Educational Office Special Projects for Scientific Research“Researches on key techniques for LTE base station in multi-antenna system”(09JK596)
关 键 词：Beamforming QR decomposition algorithm SVD decomposition algorithm of the Diagonal Loading(DL-SVD)
摘 要：In the beamforming algorithm of the matrix decomposition,through QR decomposition of data matrix,the QR decomposition algorithm transforms the problem of solving the weighted vector into the problem of solving a triangular linear equations,which avoids to estimating and inversing of array signal covariance matrix, improves the robustness of the data;But when the smaller sample number,the noise eigenvalue dispersion of the sample covariance matrix leads to the degradation of the beamforming algorithm performance and QR algorithm performance will be *** to this shortcoming,the SVD algorithm of the diagonal loading is proposed in this paper,the simulation results showed that DL-SVD algorithm not only improve the performance of the algorithm but also reduce complexity.