摘要
为解决信号与系统课程频域分析物理概念复杂、理论计算枯燥、学生理解困难等问题,通过对电力谐波分析评估科研项目分析、提炼、分解,设计频域分析教学案例,分析电力谐波检测的工程背景与问题提取,运用傅里叶变换实现谐波检测,探讨基于傅里叶变换谐波检测的频谱泄漏等工程问题。
In order to solve the problems in frequency domain analysis of signal and system teaching, such as complex physical con- cept, boring theoretical calculation and hard understanding for students etc, the scientific research project of electric power harmonic analysis and evaluation was analyzed, refined and decomposed for the teaching case designing of frequency domain analysis. The engi- neering background and problems extraction were analyzed, and the power harmonic detection was provided by using Fourier transform. The detection problem such as spectrum leakage in harmonic detection based on DFT was discussed.
出处
《农业科技与装备》
2016年第5期90-92,共3页
Agricultural Science & Technology and Equipment
基金
辽宁省普通高等教育本科教学改革研究一般项目(UPRP20140645)
沈阳农业大学教学研究立项(2016-174)
关键词
信号与系统
频域分析
教学案例
科研实践
signal and system, frequency domain analysis
teaching cases
scientific research practice
