Nyquist frequency

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Related to Folding frequency: Nyquist limit, folding hands
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Noun1.Nyquist frequency - (telecommunication) twice the maximum frequency occurring in the transmitted signal
telecom, telecommunication - (often plural) systems used in transmitting messages over a distance electronically
sampling frequency - (telecommunication) the frequency of sampling a continuously varying signal
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References in periodicals archive ?
Anti-alias filter: In sampled systems, the bandwidth of the input has to be limited to the folding frequency to avoid aliasing.
This filter has a stopband that starts at half of the sampling frequency--the folding frequency. Modern audio DACs usually have this anti-imaging filter implemented with a combination of two filters: a sharp cutoff digital finite impulse response (FIR) filter, followed by a relatively simple low-order analog filter.