Fourier series that map periodic continuous-time functions into sequences in the frequency domain;
continuous-time Fourier transforms that map continuous-time functions into continuous frequency domain functions;
discrete-time Fourier transforms (DTFT) that map time domain sequences into periodic continuous frequency domain functions;
discrete Fourier transforms (DFT) that map periodic sequences in the time domain to periodic sequences in the frequency domain.
KeywordsFourier Transform Fourier Analysis Fourier Series Discrete Fourier Transform Digital Signal Processing
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