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- Nyquist_frequency abstract "The Nyquist frequency, named after electronic engineer Harry Nyquist, is ½ of the sampling rate of a discrete signal processing system. It is sometimes known as the folding frequency of a sampling system. An example of folding is depicted in Figure 1, where 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 (fs). 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. The symmetry about 0.5 fs is referred to as folding.The Nyquist frequency should not be confused with the Nyquist rate, which 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. For example, the Nyquist rate for the sinusoid at 0.6 fs is 1.2 fs, which means that at the fs rate, it is being undersampled. Thus, Nyquist rate is a property of a continuous-time signal, whereas Nyquist frequency is a property of a discrete-time system.When the function domain is time, sample rates are usually expressed in samples/second, and the unit of Nyquist frequency is cycles/second (hertz). When the function domain is distance, as in an image sampling system, the sample rate might be dots per inch and the corresponding Nyquist frequency would be in cycles/inch.".
- Nyquist_frequency thumbnail Aliasing-folding.png?width=300.
- Nyquist_frequency wikiPageID "164685".
- Nyquist_frequency wikiPageRevisionID "604941041".
- Nyquist_frequency hasPhotoCollection Nyquist_frequency.
- Nyquist_frequency subject Category:Digital_signal_processing.
- Nyquist_frequency comment "The Nyquist frequency, named after electronic engineer Harry Nyquist, is ½ of the sampling rate of a discrete signal processing system. It is sometimes known as the folding frequency of a sampling system. An example of folding is depicted in Figure 1, where 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 (fs).".
- Nyquist_frequency label "Częstotliwość Nyquista".
- Nyquist_frequency label "Nyquist frequency".
- Nyquist_frequency label "Nyquist-Frequenz".
- Nyquist_frequency label "Nyquist-frequentie".
- Nyquist_frequency label "Частота Найквиста".
- Nyquist_frequency label "ナイキスト周波数".
- Nyquist_frequency label "奈奎斯特频率".
- Nyquist_frequency sameAs Nyquist-Frequenz.
- Nyquist_frequency sameAs ナイキスト周波数.
- Nyquist_frequency sameAs Nyquist-frequentie.
- Nyquist_frequency sameAs Częstotliwość_Nyquista.
- Nyquist_frequency sameAs m.015yhd.
- Nyquist_frequency sameAs Q1501757.
- Nyquist_frequency sameAs Q1501757.
- Nyquist_frequency wasDerivedFrom Nyquist_frequency?oldid=604941041.
- Nyquist_frequency depiction Aliasing-folding.png.
- Nyquist_frequency isPrimaryTopicOf Nyquist_frequency.
