Nyquist frequency

It can also be explained with reference to the sampling and Nyquist frequency.

The bandwidth of the digital system is determined, according to the Nyquist frequency, by the sample rate used.

Does anyone remember what the Nyquist frequency is?"

Early uses of the term Nyquist frequency, such as those cited above, are all consistent with the definition presented in this article.

In signal processing the critical frequency it is also another name for the Nyquist frequency.

Choice of an appropriate sample-rate (see Nyquist frequency) is the key to minimizing that distortion.

However, considering Hales' article it could be sufficient to simply remove the Nyquist frequency.

This representation gives a good picture of what happens around the Nyquist frequency when filtering with the low-pass filter is done.

That means to let the frequency close to Nyquist frequency be the cutoff frequency.

To prevent this an anti-aliasing filter is used to remove components above the Nyquist frequency prior to sampling.

The Nyquist frequency will also change when the PRF is changed.

Therefore strains can be measured which vary at frequencies up to the Nyquist frequency of 1 kHz.

In this period (starting about 30th second) all the harmonics, up to the Nyquist frequency, clearly follow the pattern of decreasing frequency.

Instead, the normalizing frequency could be the nyquist frequency, which puts a valid signal on cycles per sample.

This is not strictly necessary; for even numbers of points, one includes another cosine term corresponding to the Nyquist frequency.)

The symmetries of the trispectrum allow a much reduced support set to be defined, contained within the following verticies, where 1 is the Nyquist frequency.

If the diffraction pattern is sampled at twice the Nyquist frequency (inverse of sample size) or lower it can yield a unique real space image.

In applications where the sample-rate is pre-determined, the filter is chosen based on the Nyquist frequency, rather than vice-versa.

However, it is common to represent a digital frequency that has been normalized to either the Nyquist frequency or the sampling frequency.

Without an anti-aliasing filter, frequencies higher than the Nyquist frequency will influence the samples in a way that is misinterpreted by the interpolation process.

This is barely noticeable at low frequencies but is quite evident at frequencies close to the Nyquist frequency.

The noise floor, however, is spread throughout the entire "legal" frequency range below the Nyquist frequency of 1.4112 MHz.

Often, this is done by adding analog anti-aliasing filters at the input and output, thus avoiding any frequency component above the Nyquist frequency.

When the function domain is time, sample rates are usually expressed in samples/second, and the unit of Nyquist frequency is cycles/second (hertz).

Frequency is folded for high speed targets where radial velocity produces a frequency shift above the Nyquist frequency.