thumb|right|255px|Fig 1: The top 2 graphs depict Fourier transforms of 2 different functions that produce the same results when sampled at a particular rate. The baseband function is sampled faster than its Nyquist rate, and the bandpass function is undersampled, effectively converting it to baseband. The lower graphs indicate how identical spectral results are created by the aliases of the sampling process. thumb|right|255px|Plot of sample rates (y axis) versus the upper edge frequency (x axis) for a band of width 1; grays areas are combinations that are "allowed" in the sense that no two fre
Wikidata facts
- Subclass of
- sampling
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- less than
- Nyquist rate
- opposite of
- oversampling
- maintained by WikiProject
- WikiProject Mathematics
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