关于求解功率问题时非周期函数用傅立叶级数展开的探讨  

Discussion on Non-periodic Function Carried out by Fourier Series when Calculating Power

作　　者：杨福涛[1] 孙鹏[1] 

机构地区：[1]鞍山师范学院物理系,辽宁鞍山114007

出　　处：《鞍山师范学院学报》2009年第2期18-20,共3页Journal of Anshan Normal University

摘　　要：在"信号与线性系统"课程中,傅立叶级数和傅立叶变换是一个非常重要的内容,通过这些内容的学习,学生可以建立起信号频谱的概念,同时也可以理解线性系统的频域分析方法.而很多后续课程中需要利用其计算功率问题,有些概念很容易引起学生的混淆,本文提出了一个新的教学思路,有利于学生理解功率计算中傅立叶级数的应用,经验证效果良好.In the course of Signals and Linear Systems, Fourier series and Fourier transform is an important content. Through the study of these contents, students can obtain the concept of signal spectrum. They can also understand the method of analyzing a linear system. A lot of following courses will use them to compute problems of power, but some students will be confused by some concepts. This paper presents a new way which will help students understand how to use Fourier series in computing power. With testing, it is good in application.

关 键 词：傅立叶变换 傅立叶级数 周期信号 非周期函数 

分 类 号：G202[文化科学—传播学]