面向本科生的傅里叶变换拓展教学方法

Extended Teaching Method of Fourier Transform for Undergraduates

在本科生电子信息类教学中,傅里叶变换占有非常重要的地位,在学习了连续和离散傅里叶变换后,作为教学的延伸,引入窗口傅里叶变换作为拓展教学内容,并启发式地引导学生对自适应傅里叶分解进行探究。主要介绍从傅里叶变换到窗口傅里叶变换(STFT)和自适应傅里叶分解(AFD)的信号分析拓展教学方法,以强化学生的理论基础,增强学生的应用能力,让学生了解更多的学术前沿研究成果,启发学生的创新性思维。

Fourier transform plays a vital role in the teaching of electronic information undergraduate.After learning continuous Fourier transform and discrete Fourier transform,as an extension of teaching,we can arrange short-time Fourier transform and adaptive Fourier decomposition to expand the teaching content.This paper mainly introduces the expanding teaching method of signal analysis from Fourier transform to short-time Fourier transform(STFT)and adaptive Fourier decomposition(AFD),so as to strengthen students′theoretical basis,enhance students′application ability,let students understand more academic frontier research results,and inspire students′innovative thinking.