离散时间傅里叶变换的教学探讨与设计

The Teaching Research and Design for Discrete Time Fourier Transform

结合“理论联系实际”新工科教学理念,梳理了离散时间傅里叶变换的概念,性质、以及与连续时间傅里叶变换的联系等教学内容,设计了基于Matlab仿真作业的实践环节,将数学原理推导和工程应用实践相挂钩。通过此类教学设计,强化离散时间傅里叶变换的物理意义阐述,深化教与学互动,极大促进了学生对傅里叶变换后续学习和应用的积极性,取得了较好的教学效果。

This paper explores the concept and interpretation for discrete-time Fourier transform(DTFT),and designs Matlab based simulation homework.The derivation of DTFT principles is linked to engineering application practice.Through this new teaching design,the presentation of teaching content and learning methods are improved,which greatly motivates students to learn the follow-up DTFT applications,and achieves a positive teaching effect.