书
基于 Matlab/Simulink 的 QPSK 调制解调仿真设计与研究
目录
摘 要 ..................................................................... 2 第一章 前 言.............................................................. 2 1.1 专业设计任务及要求 .......................................................................................................... 2 1.2 Matlab 简介 ............................................................ 2 1.3 Matlab 下的 simulink 简介 ................................................ 3 1.4 通信系统模型 .......................................................... 3 第二章 QPSK 调制 ........................................................... 4 2.1 QPSK 介绍 ............................................................ 4 2.2 QPSK 调制原理 ........................................................ 4 2.2.1 相乘法....................................................................................................................... 4 2.2.2 选择法....................................................................................................................... 5 2.3 QPSK 调制原理框图 ........................................................................................................ 6 2.4 QPSK 调制方式的 Matlab 仿真 ........................................... 6 2.5 QPSK 调制方式 Matlab-simulink 仿真 ............................................................................ 7 2.5.1 simulink 调制建模................................................... 7 2.5.2 simulink 调制仿真结果 ............................................................................................... 8 第三章 QPSK 解调 .......................................................... 13 3.1 QPSK 解调原理 ...................................................... 13 3.2 QPSK 解调原理框图 .................................................................................................... 13 3.3 QPSK 解调方式 Matlab 仿真 ........................................... 13 3.4 QPSK 解调方式的 Matlab-simulink 仿真 .................................. 14 3.4.1 QPSK 解调建模 .................................................. 14 3.4.2 传输信道................................................................................................................. 16 3.4.3 仿真结果................................................................................................................. 16 3.5 仿真结果分析.................................................................................................................... 18 第四章 QPSK 通信系统性能分析 .............................................. 19 第五章 结论 ............................................................... 19 参考文献 ................................................................... 20 附 录 ..................................................................... 20