The discrete Fourier transform is one of the most important computational tools in signal processing. This lesson briefly introduces you to some of the applications for the discrete Fourier transform, its definition, and develops the relationship between the discrete Fourier transform and the discrete-time Fourier transform. An understanding of this relationship is essential to proper use of the discrete Fourier transform in signal processing.
Key Concepts and Screenshots
Concepts and Screenshots for The Discrete Fourier Transform: Sampling the Discrete-Time Fourier Transform