摘要
近年来,随着无线通信系统应用范围的增加及智能终端设备的普及,如何发挥信道均衡技术的作用及优势成为通信领域的重点研究内容。针对通信中多径时延引起的码间串扰(ISI)问题,以提高通信系统性能为目的,在研究信道均衡技术理论的基础上使用最小均方误差准则设计线性均衡器,并通过USRP硬件平台检验所设计均衡器的效果。实验结果表明,通过信道均衡之后的误码率一般保持在10-5左右,与没有信道均衡的误码率0.08相比,数据传输更加稳定,可靠性也得到有效提升。
In recent years,with the increase of the application range of wireless communication system and the popularization of intelligent terminal equipment,how to play the role andadvantages of channel equalization technology has become the key research content in the field of communication.Aiming at inter-code crosstalk(ISI)caused by multipath delay in communication,in order to improve the systematicness of communication,this paper designs a linear equalizer based on the theory of channel equalization technology by using the minimum mean square error criterion,and tests the effect of the designed equalizer by USRP hardware platform.The experimental results show that the bit error rate after channel equalization generally remains around 10-5,and compared with the 0.08 without channel equalization,the data transmission is more stable and the reliability is effectively improved.
作者
杨瑞
孙运强
杜欣
王瑞
Yang Rui;Sun Yunqiang;Du Xin;Wang Rui(Information and Communication Engineering Institute,North University of China,Taiyuan 030051,China)
出处
《国外电子测量技术》
2020年第9期36-41,共6页
Foreign Electronic Measurement Technology
