摘要
针对模拟元件制做的传统接收机的相关设备由于工作频率较高导致对元件参数要求高,电路布局布线困难等问题,提出一种利用FPGA芯片作为接收机的重要组成部分,结合简单外围硬件电路共同组成接收机的新方法。通过FPGA的差分I/O引脚完成接收机的模数转换功能,在集成设计环境Vivado中通过调用IP核的方法实现数字下变频和信号解调等功能。实验结果表明,该系统具有成本低、响应快、可靠性高的特点。
The high operating frequency of the traditional receiver and related equipment made by analog components leads to high requirements of the component parameters and circuit layout. Focused on this problem,a new method is presented by using a high-speed digital processor chip FPGA as an important part of the receiver,combined the simple peripheral hardware circuit into the complete receiver. FPGA differential I / O pins can be used as a comparator to complete the conversion function; the method of invocating IP core in Vivado integrated design environment can realize the digital down-conversion and signal demodulation function. The experimental results show that,the system has the characteristics of low cost,fast response,high reliability.
出处
《电子器件》
CAS
北大核心
2015年第2期332-337,共6页
Chinese Journal of Electron Devices
关键词
软件无线电
数字信号处理
FPGA
数模转换
IP核
接收机
software radio
digital signal processing
FPGA
digital to analog conversion
IP core
receiver
作者简介
张俊涛(1966-),男,陕西西安人,教授,硕士生导师,研究方向为软件无线电,信号与信息处理、EDA技术及应用,zhangjl@sust.edu.cn;
薛莹(1988-),女,陕西西安,硕士研究生,研究方向为信号与信息处理、EDA技术及应用,1413206957@qq.com
艾春艳(1988-),女,陕西榆林,硕士研究生,研究方向为信号与信息处理、FPGA应用,aichunyankk@163.com.