公开(公告)号：US11909564B1

公开(公告)日：2024-02-20

申请号：US18242023

申请日：2023-09-05

申请人： Southwest Jiaotong University

发明人： Yanyan Wang ,  Qidi Li ,  Li Li ,  Xianfu Lei ,  Xiaohu Tang

IPC分类号： H04L25/02

CPC分类号： H04L25/0256 ,  H04L25/0204 ,  H04L25/0242

摘要： An angular domain channel estimation method based on matrix reconstruction for a symmetrical nonuniform array is a combined two-stage channel estimation and channel equalization scheme provided based on an SNLA model. In a first stage, a matrix reconstruction method is used to estimate a path AOA, and compared with traditional channel estimation based on ULA, the matrix reconstruction method achieves a higher resolution ratio. In a second stage, an LS method is used to obtain a path gain. According to the angular domain channel estimation method, a mean square error of channel estimation, a bit error of data transmission and complexity of a traditional scheme are significantly reduced. A simulation result indicates that compared with the traditional method, the angular domain channel estimation method can achieve a lower MSE and BER.