Why Discrete Signals Show Repeating Spectra 🔄
Sampling transforms signals into discrete-time versions, causing their frequency spectra to repeat periodically due to the nature of digital sampling.
Mark Newman
35.3K views • Aug 23, 2023
About this video
Why do discrete time signals exhibit a repeating pattern in their frequency spectra? When we sample a signal, turning it into a discrete-time signal, we are effectively throwing away some of the information about that signal. We only know what it is doing at the points we sampled it. But what is going on between two sampled points and why does it produce a repeating pattern in the frequency domain?
For a comprehensive and visually intuitive exploration of the Fourier Transform and its workings, I invite you to explore my book series on the Fourier Transform available at:
https://www.amazon.com/dp/B0BSJJ69Z1
For a comprehensive and visually intuitive exploration of the Fourier Transform and its workings, I invite you to explore my book series on the Fourier Transform available at:
https://www.amazon.com/dp/B0BSJJ69Z1
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Views
35.3K
Likes
1.5K
Duration
1:00
Published
Aug 23, 2023
User Reviews
4.7
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