摘要
为了提高通信系统的抗干扰性能,本文以软件无线电为基础,利用LabVIEW(laboratory virtual instrment engineering workbench)软件和通用软件无线电外设(universal software radio peripheral,USRP)硬件设计了基于ALOHA协议的跳频抗干扰传输系统。在调频(frequency modulation,FM)电台干扰与人为干扰的环境下,进行了数据传输实验,并最终计算出相应的误码率。实验结果表明,设计的跳频传输系统的抗干扰性能明显优于定频传输系统,ALOHA重传机制也一定程度上提高了数据传输的可靠性。
In order to improve the anti-interference performance of communication system,based on software defined radio(SDR), frequency hopping anti-interference transmission system with ALOHA protocol is designed in LabVIEW software and universal software radio peripheral(USRP) hardware platform. The data transmission experiment is carried out in the environment with frequency modulation(FM) radio interference and human interference,and the corresponding bit error rate(BER)is calculated ultimately. The experimental results show that the anti-interference performance of the frequency hopping transmission system designed in this paper is better than that of the fixed frequency transmission system, and the ALOHA retransmission mechanism enhances the reliability of data transmission to some extent.
作者
徐招君
王明旭
肖友鹏
张集
巩澳
魏俊玲
童峥嵘
XU Zhaojun;WANG Mingxu;XIAO Youpeng;ZHANG Ji;GONG Ao;WEI Junling;TONG Zhengrong(School of Electrical and Electronic Engineering,Tianjin University of Technology,Tianjin 300384,China)
出处
《天津理工大学学报》
2021年第4期31-35,共5页
Journal of Tianjin University of Technology
基金
天津市自然科学基金(18JCYBJC86300)
天津市大学生创新创业训练计划(201910060109)。
关键词
软件无线电
跳频传输技术
ALOHA协议
通信系统
software defined radio
frequency hopping transmission technology
ALOHA protocol
communication system
