Nyquist rate


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Related to Nyquist rate: sampling rate, Nyquist interval
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Noun1.Nyquist rate - (telecommunication) the lowest sampling rate that will permit accurate reconstruction of a sampled analog signal
telecom, telecommunication - (often plural) systems used in transmitting messages over a distance electronically
sampling rate - (telecommunication) the frequency of sampling per unit time
References in periodicals archive ?
This is mostly due to a traditional assumption that sampling must be performed at the Nyquist rate, that is, twice the signal bandwidth.
On the one extreme, a conventional sampling architecture employs an analog-to-digital converter (ADC) driven in series by a band-limited analog source, and produces samples at or above the Nyquist rate (see Fig.
Many classes of FRI signal can be recovered from samples taken at the rate of innovation, which is far below the Nyquist rate [7,8].
That the density Z) is the correct and true extension of the notion of Nyquist rate of the classical sampling theory and algorithms, to "geometric signals", is shown in Section 5.
The onboard decimation filter suppresses modulator and out-of-band noise, providing a usable signal bandwidth up to 90 percent of the Nyquist rate with a stop-band attenuation of 100 dB.
It offers a high bandwidth track-and-hold that gives excellent spurious performance up to and beyond the Nyquist rate, and provides an output enable pin to allow for testability on a PC board.
It is said that according to CS, if properly chosen, the number of measurements can be much smaller than that of Nyquist rate samples [10] and the signal can be recovered with high probability when the measurement matrix satisfies certain condition.
Achieving a direct sampling speed several times faster than the Nyquist rate is called oversampling.