基于FPGA的DPSK信号的调制解调设计实现

数字通信系统中,一个关键性的技术就是调制解调技术。当前FPGA技术不断进步,将特定的功能实现集成在单个芯片上成为新的趋势。基于这种方法,本文重点阐述用FPGA实现全数字DPSK调制解调系统的设计方法。本文首先将对解调环路的整体框架进行阐述,然后介绍了载波同步环路的详细工作原理、动态方程以及相应的技术指标。最后,通过MATLAB设计仿真和HDL文件的编制,完成了DPSK从设计到仿真再到板级实现的全过程。

Design and Implementation of DPSK Signal Modulation and Demodulation Based on FPGA

Modem is a key technology in digital communication system.With the development of FPGA,there is a new trend to integrate specific function into a single chip.Based on the method,this paper focuses on the design of a full digital DPSK modem system using FPGA.In this paper,the general framework of the modulation and demodulation loop is described,and then the detailed working principle,dynamic equation and corresponding technical indicators of carrier synchronous loop are introduced.At last,the whole process of DPSK from design and simulation to board level implementation is completed through MATLAB and FPGA.