基于双天线结构的数字接收机实现  

Implementation of Digital Receiver Based on Double Antenna Structure

作　　者：田克纯[1] 陈思瑶[1] 覃远年[1] 卢洪荣[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《电视技术》2011年第9期94-96,103,共4页Video Engineering

基　　金：广西自然科学基金项目(0832245);广西教育厅科研项目(200708MS005)

摘　　要：软件无线电以其具有良好的扩展性、重构性已成为无线通信发展的重要方向。该系统采用了双天线分集接收结构,解决了通信中存在的多径效应。采用AD6652的宽中频采样结构,使整个系统的灵活性、适应性、扩展性得到很大的提升,同时可以根据不同的应用在抽取滤波后进行多相合并,增加带宽。通过理论分析和仿真检验表明,该系统性能优良,结构简单,易于实现,具有一定的实际应用价值。Software Radio has become an important direction of the development of wireless communication for its good scalability and nature of reconstruction. In this system, dual antenna diversity receiver structure is adopted to solve the problem of muhipath effect. The flexibility and adaptability of whole system are greatly improved by adopting wide IF sampling structure of AD6652, depending on the application to realize the polyphase merge and increase bandwidth after the decimation. The theoretical analysis and simulations show that the system is easy to implement and has excellent performance, simple structure and practical application.

关 键 词：软件无线电 分集技术 可编程DDC AD6652 

分 类 号：TN957[电子电信—信号与信息处理]