基于MALAB的通信系统的设计与仿真.doc

2011届学士学位论文 基于MATLAB的通信系统的设计与仿真 学院、专业 物理与电子信息学院  电子信息工程 研 究 方 向 系统仿真 学 生 姓 名 学 号 指导教师姓名 指导教师职称 教授 2011年4月29日 基于MATLAB的通信系统的设计与仿真 摘要 通信是通过某种媒体进行的信息传递，目的是传输信息，通信系统是用以完成信息传输过程的技术系统的总称，作用是将信息从信源发送到一个或多个目的地。调制与解调在信息的传输过程中占据着重要的地位，是不可或缺的，因此研究系统的调制和解调过程就极为重要。MATLAB是集数值计算、图形绘制、图像处理及系统仿真等强大功能于一体的科学计算语言，它强大的矩阵运算和图形可视化的功能以及丰富的工具箱，为的分析提供了极大的方便 关键词 通信系统；调制与解调； MATLAB Simulation And Design Of Communication Systems Based On MATLAB Abstract Communication is through a media for transportation. Communication system which is used to complete the process of information transmission systems ,in general, is to send the information from the source to one or more destinations. Modulation and demodulation occupied an important position in the transmission of information which is essential, so the research about the modulation and demodulation process in the communication system is extremely important. MATLAB is a numerical computation, graphics rendering, image processing and system simulation and other powerful features in one of the scientific computing language, it is a powerful matrix calculation and graphical visualization features and a rich toolbox provides a great convenience for the communication system of modulation and demodulation process. This paper introduces the concept of the communication system, and then leads to modulation and demodulation, and then introduced several of our commonly used method of modulation and demodulation. As the power of MATLAB so we introduced the communication system toolbox in the MATLAB. We gives several examples about the communication system based on MATLAB modulation and demodulation and use the software of MATLAB to simulate them. Keywords Communication Systems; Modulation and demodulation; MATLAB 目录 1 引言 1 2 通信系统的调制与解调 2 2.1通信系统的概念 2 2.2调制和解调的概念 4 2.3 幅度