Nyquist sampling

Nyquist sampling

[′nī‚kwist ‚sam·pliŋ]
(communications)
The periodic sampling of audio or video signals, in order to preserve their information content, at a rate equal to twice the highest frequency to be preserved.
References in periodicals archive ?
Expanded Nyquist Sampling Theory, Newtons4th, Application Note 31, January 2015.
Nyquist sampling theorem is widely accepted as a means of representing band-limited signals by their digital samples.
However, in wireless network, including satellite network, current analog-to-digital hardware technology faces tremendous challenge posed by conventional spectral estimation method which operates in a way equal to or greater than the Nyquist sampling rate.
where P is the device power, ENOB = effective number of bits, and B is the signal bandwidth (hence 2B is the Nyquist sampling rate).
As we have seen in the above analysis, the minimal sample rate of the signal x(t) is 2L/[tau], which is usually much lower than Nyquist sampling rate.
s] must be greater than or equal to the Nyquist sampling rate fS to avoid loss of information in the sampled signal, where the Nyquist sampling rate is equal to twice that of the highest frequency component, [f.
Because a DDS device works with sampled data, designers must take into account the Nyquist sampling theorem.
According to nyquist sampling criteria, the maximum value of low pass output frequency, [F.
One way to determine the optimum telescope focal length for a given camera is to use the Nyquist sampling criterion.
1 have resulted in a new confocal algorithm better tuned to images where proper Nyquist sampling or over-sampling is used.
The recently introduced theory of compressed sensing (CS) [9, 10] is a new concept allowing the recovery of sparse signal that have been sampled below the traditional Nyquist sampling rate.