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Discrete Time Periodic Signals Explained by downtolab is a document available to read on EtoBox.
1. A discrete time signal is periodic if it repeats its values every N samples. 2. Periodic signals can be represented as the sum of complex exponentials whose frequencies are integer multiples of the fundamental frequency 1/N. 3. The discrete Fourier transform (DFT) represents a finite length signal as the sum of complex exponentials, in the same way as the discrete Fourier series represents an infinite periodic signal. The DFT is useful for analyzing real-world signals that are only observed over a fin
- Author
- downtolab
- Language
- EN