摘要
随着信息时代的快速发展,电磁频谱环境日益复杂,为了在有限条件下实现信息的高效传输,对电磁信号数据信息的感知与表征显得格外重要。重点研究了基于软件无线电平台的数据表征方法与实现。首先,给出了时序-频点-幅度表征法、时序-频序-幅度表征法、单一幅度数据表征方法和基于幅度差分的四种数据表征方法,分析了不同表征方法的性能和效率。然后从硬件和软件两个方面,对软件无线电平台进行了简要介绍。最后,基于通用软件无线电设备搭建了一套收发通信系统,按照理论方法对频谱数据进行表征,以验证数据表征方法的可行性,结果表明所提的幅度差分的数据表征方法传输数据量较低,还能恢复出原始的电磁信号数据,实现了信息的高效传输。
With the rapid development of the information age,the electromagnetic spectrum environment is increasingly complex.To realize the efficient transmission of information under limited conditions,the perception and representation of electromagnetic signal data information is particularly important.This paper focuses on the representation method and implementation of electromagnetic signal data based on software radio peripheral.Firstly,four representation methods are provided including timing-frequency-amplitude representation,timing-frequency series-amplitude representation,single-amplitude data representation,and amplitude difference-based representation,and different methods are analyzed in terms of performance and efficiency.Then,the software radio platform is briefly introduced from aspects of hardware and software.Finally,a set of transceiver communication system is built based on the universal software radio peripheral(USRP),and the spectrum data is represented according to theoretical methods to verify the feasibility of data representation method.The results show that the proposed data representation of amplitude difference method can restore the original electromagnetic signal data with a low amount of data,which realizes the efficient transmission of information.
作者
黄璐莹
陈润丰
石亮
徐逸凡
HUANG Luying;CHEN Runfeng;SHI Liang;XU Yifan(Army Engineering University of PLA,Nanjing 210007,China;Troops 75836,Guangzhou 510000,China)
出处
《移动通信》
2022年第2期95-100,共6页
Mobile Communications
关键词
USRP
电磁信号
数据表征
幅度差分
USRP
electromagnetic signal
data representation
amplitude difference
