电子科技 ›› 2019, Vol. 32 ›› Issue (8): 41-45.doi: 10.16180/j.cnki.issn1007-7820.2019.08.009

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载波同步中数字锁相环的重构设计

段铁,黄焱,汪洋   

  1. 信息工程大学 信息系统工程学院,河南 郑州 450000
  • 收稿日期:2018-07-31 出版日期:2019-08-15 发布日期:2019-08-12
  • 作者简介:段铁(1989-),男,硕士研究生。研究方向:通信信号处理,软件无线电。
  • 基金资助:
    河南省自然科学基金(162300410333)

Reconfiguration Design of Digital PLL in Carrier Synchronous

DUAN Tie,HUANG Yan,WANG Yang   

  1. School of Information Systems Engineering,Information Engineering University,Zhengzhou 450000,China
  • Received:2018-07-31 Online:2019-08-15 Published:2019-08-12
  • Supported by:
    Natural Science Foundation of Henan(162300410333)

摘要:

针对以往载波同步锁相环中代码或设备不可继承、不可移植所导致的开发效率较低的问题,文中提出了以复用FPGA组件的形式重构载波同步锁相环的方案。该方案通过功能分解提取不同锁相环的共性模块、为功能模块映射合适算法并在FPGA中实现。该方法利用OCP协议封装接口生成FPGA组件,最终复用组件以构建新锁相环应用。仿真实验结果显示,组件复用率超过60%,证明了新方法的正确性和有效性。

关键词: 重构, 数字锁相环, 载波同步, 组件, OCP, FPGA

Abstract:

Aiming at the problem that the development efficiency of the code or device in the previous carrier synchronous phase-locked loop is inherited and non-portable, a scheme of reconfiguring carrier synchronous PLLs in the form of reusing FPGA components was proposed. The scheme extracted the common modules of different phase-locked loops through functional decomposition, mapped suitable algorithms for functional modules and implemented them in FPGA. The method used the OCP protocol to encapsulate the interface to generate the FPGA component, and finally reused component to construct a new phase-locked loop application. The simulation results showed that the component reuse rate exceeded 60%, proving the correctness and effectiveness of the new method.

Key words: reconfiguration, digital PLL, carrier synchronous, component, OCP, FPGA

中图分类号: 

  • TN876.4