摘要
介绍一种采用软件无线电技术的电台原理教学及实验平台。为了提高教学效果,该平台能通过软件配置实现不同型号电台的主要功能,并实时或近实时获取信号处理中关键节点的信号特征,用于观察和分析。该平台采用ARM-DSP-FPGA的基本架构,设计适配的射频前端电路、功能模块算法及应用软件。用户可通过显示控制终端操作,根据预设实验项目进行配置,实现相应型号电台的基本工作过程。该平台针对典型电台进行软件及硬件设计,具有较灵活的配置和扩展能力,在线获取信号的功能一定程度上解决了采集分析实装电台信号的难题,有较强的实际应用效果。
A software radio based broadcasting stations teaching and experimental platform was introduced.In order to enhance the teaching effect,the platform realizes the major functions of different broadcasting stations through the software configureations,and gains signal characteristic from essential points of signal processing in real-time or near real-time for observation and analysis.The platform has an infrastructure of ARM-DSP-FPGA with adapted RF circuit,function module algorithm and application software.Through operating the display and control terminal,user can configure according to projects of preinstall experiment,and then realize basic work process of matching stations.The platform design software and hardware in accordance with typical stations have flexible ability to configure and extend.The function of signal acquisition on line solves to a certain extent the problem of station signal collection and analysis.The platform has a strong application effect.
出处
《实验室研究与探索》
CAS
北大核心
2010年第12期41-44,共4页
Research and Exploration In Laboratory
