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Is the Nyquist rate the same as the frequency?
Nyquist frequency. The Nyquist frequency should not be confused with the Nyquist rate, the latter is the minimum sampling rate that satisfies the Nyquist sampling criterion for a given signal or family of signals. The Nyquist rate is twice the maximum component frequency of the function being sampled.
What does the black dot on the Nyquist frequency mean?
Nyquist frequency. The black dot plotted at 0.6 f s represents the amplitude and frequency of a sinusoidal function whose frequency is 60% of the sample-rate (f s ). The other three dots indicate the frequencies and amplitudes of three other sinusoids that would produce the same set of samples as the actual sinusoid that was sampled.
Which is the frequency of the sinusoidal function Nyquist?
The dashed red lines are the corresponding paths of the aliases. In this example, fs is the sampling rate, and 0.5 fs is the corresponding Nyquist frequency. The black dot plotted at 0.6 fs represents the amplitude and frequency of a sinusoidal function whose frequency is 60% of the sample-rate.
Which is the correct formula for Nyquist sampling?
Nyquist sampling (f) = d/2, where d=the smallest object, or highest frequency, you wish to record. The Nyquist Theorem states that in order to adequately reproduce a signal it should be periodically sampled at a rate that is 2X the highest frequency you wish to record.
What kind of MTF response does Nyquist have?
With sharp lenses, MTF response extended well beyond the Nyquist frequency. The 14n behaved very badly in the vicinity of Nyquist (63 lp/mm), as shown in this MTF test chart image, supplied by Sergio Lovisolo.
Are there any tones above the Nyquist limit?
Super-Nyquist theorem is a term I coined to denote use of frequencies above the Nyquist limit. Many people believe that any tones above the Nyquist Limit are lost forever or hopelessly irreconcilable with DSP theory, but Super-Nyquist Theorem says no.
What is the meaning of the Super Nyquist theorem?
Aliasing occurs when frequency components of a sound go higher than HALF THE SAMPLING RATE, also known as the Nyquist Limit. Super-Nyquist theorem is a term I coined to denote use of frequencies above the Nyquist limit.