【摘要】 以LabVIEW为基础,利用USRP平台工具包设计了基于扩频通信的数据通信系统,验证了直接序列扩频(DSSS)通信技术在抗窄带噪声等方面的良好特性。所设计的通信系统能够对各项参数进行调整,有助于在各种参数配置下对系统性能进行研究。该系统具有良好的抗窄带干扰能力。经过USRP的测试表明,发送的文本与接收的文本完全相同,说明DSSS系统工作可靠。更多还原

【Abstract】 Based on the LabVIEW,the NI USRP platform is used to design a data communication system based on the spread spectrum communication,and it has been proved that the direct sequence spread spectrum(DSSS)communication technology has good characteristics in resisting narrowband noise.The designed communication system can adjust various parameters,which is helpful for the study of the system performance under various parameter configurations.This system has good ability to resist narrow band interference.The USRP(universal software radio peripheral)test shows that the sent text is exactly the same as the received text,which indicates that the DSSS system works reliably.更多还原