An adaptive beamforming algorithm based on direction vector rotation and joint iterative optimization  

作　　者：XIE Jianping WANG Rui HE Xiongxiong LI Sheng 

机构地区：[1]Lishui University [2]Zhejiang University of Technology

出　　处：《Chinese Journal of Acoustics》2017年第1期87-101,共15页声学学报（英文版）

基　　金：supported by the National Science&Technology Pillar Program(2013BAF07B03);Zhejiang Provincial Natural Science Foundation of China(LY13F010009)

摘　　要：An adaptive beamforming algorithm named robust joint iterative optimizationdirection adaptive （RJIO-DA） is proposed for large-array scenarios. Based on the framework of minimum variance distortionless response （MVDR）, the proposed algorithm jointly updates a transforming matrix and a reduced-rank filter. Each column of the transforming matrix is treated as an independent direction vector and updates the weight values of each dimension within a subspace. In addition, the direction vector rotation improves the performance of the algorithm by reducing the uncertainties due to the direction error. Simulation results show that the RJIO-DA algorithm has lower complexity and faster convergence than other conventional reduced-rank algorithms.An adaptive beamforming algorithm named robust joint iterative optimizationdirection adaptive （RJIO-DA） is proposed for large-array scenarios. Based on the framework of minimum variance distortionless response （MVDR）, the proposed algorithm jointly updates a transforming matrix and a reduced-rank filter. Each column of the transforming matrix is treated as an independent direction vector and updates the weight values of each dimension within a subspace. In addition, the direction vector rotation improves the performance of the algorithm by reducing the uncertainties due to the direction error. Simulation results show that the RJIO-DA algorithm has lower complexity and faster convergence than other conventional reduced-rank algorithms.

关 键 词：SINR DA MVDR RLS An adaptive beamforming algorithm based on direction vector rotation and joint iterative optimization 

分 类 号：TN713[电子电信—电路与系统]