Nyquist frequency
The Nyquist frequency, named after Harry Nyquist or the NyquistShannon sampling theorem, is half the sampling frequency of a
discrete signal processing system. It is sometimes called the critical frequency. The sampling theorem tells us that
aliasing can be avoided if the Nyquist frequency is greater than the
bandwidth, or maximum frequency, of the signal being sampled.
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Encyclopedia
The
Nyquist frequency, named after Harry Nyquist or the NyquistShannon sampling theorem, is half the sampling frequency of a
discrete signal processing system. It is sometimes called the
critical frequency. The sampling theorem tells us that
aliasing can be avoided if the Nyquist frequency is greater than the
bandwidth, or maximum frequency, of the signal being sampled.
