数字通信系统课程设计.

发布时间:2023-04-15 04:13:28   来源:文档文库   
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成都学院(成都大学)课程设计报告数字通信系统的设计与实现摘要:本设计为掌握利用MATLAB来加深对2DPSK数字频带通信系统的理解与掌握,理解运用所学的知识。我主要是用模块和程序设计出数字通信系统中的信源、信源编码、调制器、噪声、信道、解调器、信源译码、信宿。通过MATLAB仿真平台,运用所学的理论和方法进行仿真、调试、波形眼图分析,最终成功实现了2DPSK数字通信系统。关键词:MATLAB2DPSK;调制;解调I
成都学院(成都大学)课程设计报告1引言.........................................................................11.1背景..........................................................................11.2选题的目的和意义..............................................................11.3本课程设计的主要内容..........................................................222DPSK基本原理................................................................32.12DPSK信号的原理...............................................................32.22DPSK信号的调制原理...........................................................32.2.12DPSK调制.................................................................32.2.2模拟调制法.................................................................32.2.3键控法.....................................................................42.32DPSK信号的解调原理...........................................................42.3.12DPSK解调.................................................................42.3.2极性比较法.................................................................62.3.3相位比较法.................................................................632DPSK系统模块设计仿真........................................................73.1模拟调制法和极性比较法构成的2DPSK系统.........................................73.2模拟调制法和相位比较法构成的2DPSK系统.........................................73.3键控法和相位比较法构成的2DPSK系统............................................83.4模拟调制法和极性比较法模块分析................................................83.4.1模拟调制法模块.............................................................83.4.2键控法调制模块.............................................................93.4.3模拟信道模块..............................................................103.4.4极性比较法模块............................................................103.4.5相位比较法模块............................................................113.4.6误码率模块................................................................123.4.7延时器和观测模块..........................................................12II

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