无线通信信道估计方法分析  

Analysis of wireless communication channel estimation methods

作　　者：张洋羊 Zhang Yangyang(School of Information and Control Engineering,Jilin Institute of Chemical Technology,Jilin 132022,China)

机构地区：[1]吉林化工学院信息与控制工程学院,吉林吉林132022

出　　处：《无线互联科技》2023年第13期5-8,共4页Wireless Internet Technology

摘　　要：由于无线信道的复杂性,信道估计存在着多种挑战和难点,如多径效应、信号衰落、噪声和多天线干扰等。因此,研究和开发有效的信道估计方法,具有实际意义和重要价值。文章深入探讨了4种常见的信道估计方法,包括最小二乘法估计、最大似然估计、基于Pilot信号的信道估计和基于压缩感知的信道估计。文章旨在探讨无线通信系统中常用的信道估计方法以及各自的优缺点和适用场景,为无线通信系统的信道估计提供参考和指导。Due to the complexity of wireless channels,channel estimation faces various challenges and difficulties,such as multipath effects,signal fading,noise,and multi-antenna interference.Therefore,it is of practical significance and important value to study and develop effective channel estimation methods.This paper explores in-depth four common channel estimation methods,including least squares estimation,maximum likelihood estimation,pilot-based channel estimation,and compressed sensing-based channel estimation.The purpose of this paper is to discuss the commonly used channel estimation methods in wireless communication systems,their advantages and disadvantages,and applicable scenarios,providing reference and guidance for channel estimation in wireless communication systems.

关 键 词：信道估计 最小二乘法 最大似然估计 Pilot信号 压缩感知 

分 类 号：TN92[电子电信—通信与信息系统]