Management and Teaching of Discrete Fourier Transform Using Matrix Method

In order to optimize classroom management and improve teaching quality further, this paper has improved the teaching methods of the core content of digital signal processing courses: discrete Fourier transform (DFT) and fast Fourier transform (FFT). The traditional teaching method first throws the concept theorem and then uses the formula to derive the calculation. This method has problems that students cannot accept immediately in class, and it is difficult to understand in class. Aiming at the shortcomings of traditional teaching in management, this paper proposes a fast algorithm based on the mastery of students’ knowledge, through matrix analysis of DFT, and using heuristic teaching method to guide students to think about DFT from matrix theory. The same calculation effect and complexity of the algorithm can achieve better teaching results. This paper explores and practices this teaching method, realizes the penetration of heuristic teaching in management teaching, and effectively improves students’ learning autonomy and comprehensive ability. The results can promote the education and teaching development of digital signal processing courses.