In telecommunication, the Nyquist interval is the maximum time interval between equally spaced samples of a signal that will enable the signal waveform to be completely determined.
The Nyquist interval is equal to the reciprocal of twice the highest frequencycomponent of the sampled signal.
In practice, when analog signals are sampled for the purpose of digitaltransmission or other processing, the sampling rate must be more frequent than that defined by Nyquist's theorem, because of quantizationerror introduced by the digitizing process. The required sampling rate is determined by the accuracy of the digitizing process.
