广东电力Issue(8)：46-49,4.DOI:10.3969/j.issn.1007-290X.2014.08.011
基于自适应正交频分复用系统的改进LMMSE 信道估计算法
Improved LMMSE Channel Estimation Algorithm Based on Self-adaptive OFDM System
张雪皎1
作者信息
- 1. 湖南省火电建设公司，湖南 长沙 410015
- 折叠
摘要
Abstract
It is very key to correctly estimate channel state of electric power lines in view of complicated characteristic of communication network structure of electric power lines. Aiming at problems of high complexity of linear minimum mean square error algorithm and low data transmission rate in orthogonal frequency division multiplexing system,this paper intro-duces channel estimation on channel state of distribution network by using improve LMMSE algorithm. Compared with LMMSE algorithm,this improved LMMSE algorithm was proved to be with low calculation complexity which was able to save 8 s of channel estimation time and greatly shorten channel estimation time.关键词
自适应/正交频分复用技术/信道估计/线性最小均方误差算法Key words
self-adaptive/orthogonal frequency division multiplexing/channel estimation/linear minimum mean square er-ror分类
信息技术与安全科学引用本文复制引用
张雪皎..基于自适应正交频分复用系统的改进LMMSE 信道估计算法[J].广东电力,2014,(8):46-49,4.
