Sampling the DTFT

Inverse DTFT impulse train

Понимание алиасинга при цифровой субдискретизации

What is a Discrete Fourier Transform (DFT) and an FFT?

But what is the Fourier Transform? A visual introduction.

Understanding the Discrete Fourier Transform and the FFT

Lecture 11, Discrete-Time Fourier Transform | MIT RES.6.007 Signals and Systems, Spring 2011

Sampling-Rate Conversion: Frequency-Domain Interpretation of Downsampling

What If You Keep Slowing Down?

Discrete Fourier Transform - Simple Step by Step

Оконная обработка и DTFT

Lecture 10, Discrete-Time Fourier Series | MIT RES.6.007 Signals and Systems, Spring 2011

DTFT FIR filter examples (with improved audio)

Дискретное преобразование Фурье: выборка ДВПФ

Continuous Time Fourier Transform of Periodic Signals: impulse train example

Analogy between discrete time LTI filtering and beamforming

Sampling Theorem

Linear-Phase Discrete-Time Fourier Transform (DTFT) of Type 1 Signal

(7) Discrete time Fourier transform (DTFT) Part 1

z transform inverse power series

z transform examples (with improved audio)