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1、洛阳理工学院课程设计1计算机与信息工程系通信原理 课程设计报告专 业 通信工程 班 级 * 学 号 * 姓 名 * 报告完成日期 2011-12-24 指导教师 * 评语：成绩：批阅教师签名：批阅时间：洛阳理工学院课程设计2摘要通信按照传统的理解就是信息的传输，信息的传输离不开它的传输工具，通信系统应运而生，我们此次课程设计的目的就是要对调制解调的通信系统进行仿真研究。当然，在通信系统的设计研发过程中，通信系统的软件仿真已成为必不可少的一部分。目前，电子设计自动化 EDA(Electronic Design Automatic)已成为通信系统设计的主潮流。为了使复杂的设计过程更加便捷高效，使得
2、分析与设计所需的时间和费用降低。美国 Elanix 公司推出的基于 PC 机 Windows 平台的 SystemView动态系统仿真软件，是一个比较流行的，优秀的仿真软件。它是一个信号级的系统仿真软件，主要用于电路与通信系统的设计、仿真、能满足从信号处理、滤波器设计，到复杂的通信系统等要求。通常，调制分为模拟调制和数字调制，模拟调制。模拟调制常用的方法有 AM调制、DSB 调制、SSB 调制；数字调制常用的方法有 BFSK 调制等。经过调制不仅可以进行频谱搬移，把调制信号的频谱搬移到所希望的位置上，从而将调制信号转换成适合于信道传输或便于信道多路复用的已调信号，而且它对系统的传输有效性和传输
3、的可靠性有着很大的影响。调制方式往往决定着一个通信系统的性能。本文利用 SystemView 软件设计 AM 和 OOK 的调制和解调电路，并通过分析其输人输出波形验证所设计电路的正确性。关键词：SystemView 软件，AM,OOK 洛阳理工学院课程设计3AbstractAccording to the traditional communication understanding is the information transmission, information transmission is inseparable from its transmission tools, com
4、munication system emerge as the times require, we have designed this course is aim to modem communication system simulation. Of course, in communication system design and development process, the communication system software simulation has become an essential part of it. At present, the electronic
5、design automation EDA (Electronic Design Automatic) has become the main trend of communication system design. In order to make the complex design process more efficient and convenient, making the analysis and design of the time and costs is required. U.S. Elanix company introduced PC-based Windows p
6、latform SystemView dynamic system simulation software, is a more popular, excellent simulation software.It is a signal-level system simulation software, and communication systems primarily for circuit, design, simulation, to meet from the signal processing, filter design, to complex communication sy
7、stem and other requirements.Typically, the modulation is divided into analog modulation and digital modulation, analog modulation. Analog modulation methods are commonly used AM modulation, DSB modulation, SSB modulation; digital modulation methods are commonly used BFSK modulation. Spectrum can be
8、modulated used not only move, move the modulated signal spectrum to the desired position, which will convert the modulated signal suitable for transmission or to facilitated the channel multiplexed channels modulated signal, the transmission on system and has a great impact. Modulation often determi
9、nes the performance of a communication system.This paper uses the SystemView software to design AM and OOK modulation and demodulation circuit, and through the analysis of the input and output waveforms verify the correctness of the design circuit.关键词：SystemView 软件，AM,OOK目录目录摘要.2ABSTRACT.3 第 1 章 系统概
10、述.3 1.1 设计题目.3 1.2 设计目的和内容 .3 1.2.1 设计目的.3 1.2.2 设计要求.3 1.2.3 设计内容.3 第 2 章 软件开发.3 2.1 SYSTEMVIEW软件简介.3 2.2 设计原理 .4 2.2.1 模拟调制系统原理.4 2.2.2 数字调制系统.5 2.3 调制解调仿真电路图 .6 2.3.1 AM 调制解调仿真电路.6 2.3.2 ASK(OOK)调制解调仿真电路.7第 3 章 系统调试及分析.93.1 仿真波形图 .9 3.1.1 AM 调制解调仿真仿真后的波形.9 3.1.2 ASK(OOK)调制解调仿真仿真后的波形.9 3.2 调制系统仿真结果分析.10
