无线宽带通信系统中的射频校准技术研究  

Research on RF Calibration Technology in Wireless Broadband Communication System

作　　者：朱庆华 朱恭生 常莹 ZHU Qing-hua, ZHU Gong-sheng, CHANG Ying （Beijing Polytechnic, Telecommunications Engineering, Beijing 100176, china）

机构地区：北京电子科技职业学院电信工程学院,北京100176

出　　处：《电脑知识与技术》2015年第11期213-215,共3页Computer Knowledge and Technology

摘　　要：随着无线通信系统的宽带化,以及大规模MIMO技术的应用,射频通道校准技术得到广泛关注。本文分析了宽带无线通信系统中的射频通道校准技术,包括校准序列的选取,发射校准算法,接收校准算法,以及利用射频通道在短时内的平稳特性,提出了一种多次校准取平均的方法来降低系统噪声,提升校准精度,并给出了响应的仿真结果。With the development of wireless communication systems, and the application of large scale MIMO technology, radio frequency channel calibration technology has received wide attention.RF channel calibration technology for broadband wireless communication systems are analyzed in this paper, including calibration sequence selection, emission calibration algorithm, re- ceiving calibration algorithmand the use of radio channel＇ sstationary characteristics in a short time.A method with multiple cali- bration to reduce the system noise and improve the calibration accuracy is presented, and the simulation results are given.

关 键 词：MIMO 发射校准 接收校准 波束赋形 

分 类 号：TN828.6[电子电信—信息与通信工程]