基于AD6652数字下变频模块的实现  

Implementation of Digital Down-conversion Module Based on AD6652

作　　者：陈思瑶[1] 田克纯[1] 魏镜[1] 闫江涛[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13期28-29,37,共3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：提出了数字接收机基于AD6652的宽中频采样结构,使整个系统的灵活性、重构性、适应性得到很大的提升。AD6652采用矩阵输入,输入灵活,减少交叉连接产生的寄生信号,同时可以根据应用的不同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,具有实际应用价值。In this paper, a digital receiver based on wide IF sampling structure of AD6652 is proposed, improving the flexibility, reconstruction and adaptive of the system. Matrix input is adopted by AD6652 to improve input flexibility and reduce spurious signals generated by cross-connect, which can also polyphase merge after decimation filter depending on the application and increase the bandwidth. 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 可编程DDC AD6652 抽取滤波器 

分 类 号：TN957[电子电信—信号与信息处理]