2DPSK多参数调整通信系统仿真分析  

Simulation and Analysis of 2DPSK Multi-parameter Adjustment Communication System

作　　者：林青[1] 郑杰[1] LIN Qing;ZHENG Jie(College of Oceanography and Space Infomatics,China University of Petroleum,Qingdao 266580,Shandong,China)

机构地区：[1]中国石油大学(华东)海洋与空间信息学院,山东青岛266580

出　　处：《实验室研究与探索》2021年第10期127-130,共4页Research and Exploration In Laboratory

基　　金：山东省本科教学改革面上项目(M2020008);山东省研究生导师指导能力提升项目(SDYY18025);中国石油大学(华东)探究性实验项目(TJ-201910)。

摘　　要：采用Matlab软件中的Simulink工具箱完成2DPSK通信系统仿真。实验分为两部分,第1部分要求学生利用DBPSK模块直接搭建调制解调平台,通过改变高斯白噪声的参数(即信噪比),观察眼图的变化,并计算高斯白噪声信道对2DPSK系统可靠性的影响;第2部分是利用2DPSK的调制解调原理来完成通信系统的仿真,其优点是能根据2DPSK调制解调的基本原理调整各个模块的参数,查看接收端的译码情况,并要求学生多次改变信号源及载波的频率,根据2DPSK的原理重新调整各部分模块的参数。目的是让学生充分理解2DPSK的调制解调原理及高斯白噪声信道对2DPSK通信系统可靠性的影响,学会用类似方法解决通信系统相关的工程问题。This experiment mainly uses the Simulink toolbox in Matlab software to complete 2 DPSK communication system simulation. The experiment is divided into two parts. In the first part, students are required to use 2 DPSK module to build a modulation and demodulation platform directly, by changing the parameters of white Gaussian noise(i.e. the signal-to-noise ratio), they can observe the changes of eye pattern, and calculate the influence of white Gaussian noise channel on the reliability of 2 DPSK system. In the second part, students are required to use 2 DPSK modulation and demodulation principle to complete its communication system simulation, the advantage is that students can adjust the parameters of each module according to the basic principle of 2 DPSK modulation and demodulation, and observe the decoding of the receiver. Students are asked to change the frequency of the signal source and the carrier for many times, according to the principle of the 2 DPSK to adjust the parameters of each part of the module. The ultimate goal of this experiment is to make students fully understand the modulation and demodulation principle of 2 DPSK and the influence of white Gaussian noise channel on the reliability of 2 DPSK communication system, and learn to use similar methods to solve engineering problems related to communication system.

关 键 词：通信系统 建模仿真 可靠性 

分 类 号：TN914.3[电子电信—通信与信息系统]