基于Matlab的方波分解与合成仿真实验设计  

Square Wave's decomposition and composition design of experiment based on Matlab simulation

作　　者：胡中玉[1] 岳强[1] 徐东霞[1] 

机构地区：[1]昆明学院自动控制与机械工程系,云南昆明650214

出　　处：《实验技术与管理》2014年第9期44-46,49,共4页Experimental Technology and Management

基　　金：云南省教育厅科学研究基金项目(2011c103)

摘　　要：应用Matlab编写程序实现方波分解与合成实验,该实验用到将连续信号离散化处理、方波的时域和频域的转换、滤波器的频率响应等知识点,并将实验结果用Matlab自带的二维图显示出来,可以清晰地看到每个信号的时域波形、频谱,滤波器的频率响应,以及吉布斯现象,使学生更好地增强理论与实际相结合的能力,有助于学生更好地理解傅里叶级数展开式及信号频谱分析,为后续相关内容的学习奠定坚实的基础。The decomposition and composition experiment of square wave,which is a more important part of ＂signal and system.＂ By using the knowledge of continuous signal discrete,square wave＇s time and frequency domain converting and the frequency response of the filter,the experiment of Matlab programming has been realized.According to the experimental results with Matlab two dimensional picture,the time domain waveform,spectrum of each signal,the frequency response of the filter,and Gibbs phenomenon can be seen clearly.Students can enhance their ability of combining theory with practice,to understand the Fourier series and signal spectrum analysis better.

关 键 词：信号与系统实验 傅里叶级数 MATLAB仿真 

分 类 号：TN911.6[电子电信—通信与信息系统] TP391.9[电子电信—信息与通信工程]