›› 2014, Vol. 27 ›› Issue (3): 95-.

• 论文 • 上一篇    下一篇

基于FPGA的北斗QPSK调制实现与解调验证

高亮,宋茂忠   

  1. (南京航空航天大学 电子信息工程学院,江苏 南京 210016)
  • 出版日期:2014-03-15 发布日期:2014-03-11
  • 作者简介:高亮(1989—),男,硕士研究生。研究方向:数字通信与卫星导航。E-mal:gaoliang638@gmail.com。宋茂忠(1962—),男,教授,博导。研究方向:卫星导航,通信定位综合,调制技术,物理层安全通信。
  • 基金资助:

    中国航天科技集团公司卫星应用研究院创新基金资助项目(20121512)

FPGA-based QPSK Modulation Implementation and Demodulation Verification for Beidou System

GAO Liang,SONG Maozhong   

  1. (College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
  • Online:2014-03-15 Published:2014-03-11

摘要:

为研制北斗卫星导航模拟信号源,设计实现了北斗QPSK信号调制器。文中在分析了北斗卫星导航系统B1频段信号的正交相移键控调制信号的基础上,基于软件无线电的思想,在FPGA 硬件平台上实现了QPSK信号调制器,通过功率谱测试,QPSK解调和简单串口信息传输,验证了调制解调硬件单元的正确性。

关键词: 北斗, QPSK, 调制解调, FPGA, Stratix II

Abstract:

A Beidou QPSK signal modulator is designed and implemented to develop the Beidou satellite navigation analog signal source.This paper analyzes the Beidou satellite navigation system B1 band signal quadrature phase shift keying modulation signal,and implements QPSK signal modulator on FPGA hardware platform based on the idea of software radio.The correctness of modulation and demodulation hardware unit is verified by power spectrum test on QPSK demodulation and simple serial information transmission.

Key words: Beidou;QPSK;modulation and demodulation;FPGA;Stratix II

中图分类号: 

  • TN761.8