基于USRP的电力线载波技术验证平台设计与实现

针对电力线载波通信技术研究缺少实际验证环境的问题,提出了一种基于USRP(Universal Software Radio Periphery)的电力线载波通信技术验证平台。以USRP硬件板卡为基础,通过对USRP板卡的FPGA进行二次开发实现电力线载波通信数字前端,使用USRP板卡上的SRAM完成对发送数据与接收数据的缓存以简化设计的复杂度,采用以太网接口实现USRP板卡与主机matlab软件的连接,结合自主开发的模拟前端与耦合电路,使得用于电力线载波技术研究的仿真代码可以直接在电力线信道上进行验证,提高了电力线载波通信技术研究的效率与可靠性。测试结果表明,通过灵活配置数字前端的工作频率与带宽,验证平台适用于不同频带范围的电力线载波技术验证。

Powerline Communication Technology Verification Platform Design and Implementation Based on USRP

A Powerline communication (PLC) technology verification platform is proposed due to the lack of real verification environment during research. Based on the USRP hardware board and its open-source firmware, the PLC digital front-end is re-designed in FPGA, and the SRAM is adopted to cache the transmitting and receiving packets to simplify the platform design. Ethernet interface is used to connect the USRP board and matlab software on PC; therefore, with the aid of a simple analog front-end and coupling circuit, the matlab code for researching the PLC technique can be verified on real power-line environment directly, so that the efficiency and reliability of researching are promoted. The test result shows, by configuring the working frequency and bandwidth, the platform is suitable for different kinds of PLC techniques.