文档介绍：河北经贸大学毕业论文
信号与系统实验仿真系统的设计
——连续系统分析模块
专业名称: 电子信息工程
班级: 2008级1 班
学生姓名: 常岩岩
指导老师: 胡爱华
完成时间: 2012年5月
摘要
《信号与系统》是电子信息类专业的专业基础课。由于《信号与系统》是一门很抽象、理论和实践结合较紧密的学科,因此实验教学在课程教学中占有十分重要的地位。本文基于MATLAB设计并实现了一套信号与系统实验系统。目前主要的研究方法有时域分析方法与频域分析方法,然而这些方法的应用比较繁琐和复杂,非常有必要设计专门针对线性系统的仿真软件,便于实际应用中对系统的控制。MATLAB语言是功能十分强大的工程计算及数值分析软件,它提供了高效的信号处理工具箱,应用MATLAB语言和信号处理工具箱中的函数建立了一个集成环境下的信号分析系统。此系统能生成信号,计算信号的特征参数以及进行时域和频域的分析,并生成谱图。并且利用MATLAB函数仿真对系统稳定性进行分析,分析过程简单,结果准确可靠。应用MATLAB语言设计的GUI仿真界面具有灵活、简便、修改方便等特点,可以随时修改线性系统的参数,并得到系统的时频域特性曲线与性能指标,使线性系统分析的工作量大大减少。
关键词信号与系统;实验;仿真;MATLAB
Abstract
Signals and systems is the basic course of electronic specialties. Because this course is very abstract and its theory and bined tightly, experimental teaching is very important in teaching process. In this paper, an experimental system based on MATLAB is designed and implemented. At present the main research methods have time domain analysis method and frequency domain analysis method. However, the application of these methods are tedious plex, so it is quite necessary to design special simulating software for linear systems to control systems in practical application. MATLAB language is an engineering calculation and data analysis software with an effective signal process toolbox in it. An integrated signal analysis system is founded on MATLAB language and the signal process toolbox. The system can generate signals, calculate the character’s parameters of signals, analyze time domain and frequency domain and generate spectrum. Making use of the MATLAB function to analyze the system stability is simple and the result is accurate. GUI interface designed by MATLAB language is flexible, easy, and conveniently modifying. It is also easy to modifying linear system parameters at any time and get the systems’ time and frequency domain characteristic curves and performance index, thus make the workload of analyzing linear systems greatly reduced. The simulation experiments make up the weaknesses in the teaching, and t