Nyquist rate - Wikipedia, the free encyclopedia
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In signal processing, the Nyquist rate is two times the bandwidth of a bandlimited signal or a bandlimited channel. This term is used to mean two different things under two different circumstances: ...
en.wikipedia.org/wiki/Nyquist_rate
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In this case, we have fc=3 Hz, and so the Nyquist theorem tells us that the sampling frequency, fs, must be at least 6 Hz. And sure enough, this appears to be su cient: 2 1.5 1 amplitude 0.5 0 -0.5 -1 -1.5 -2 0 0.5 1 1.5 2 time (sec) 2.5 3 3.5 4 Thus, when a signal contains not just one but many di erent frequencies...
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redwood.berkeley.edu/bruno/npb261/aliasing.pdf
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The Nyquist theorem states that a signal must be sampled at least twice as fast as the bandwidth of the signal to accurately reconstruct the waveform; otherwise, the high-frequency... ... Demonstrating Nyquist Theorem and Quantization Error concepts using NI SignalExpress Software...
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zone.ni.com/devzone/cda/tut/p/id/4653
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The Nyquist Theorem explains the relationship between the sample rate and the frequency of the measured signal. Each of these terms is discussed in more detail below.
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zone.ni.com/devzone/cda/tut/p/id/2709
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If this happens, then there is no guarantee that we can correctly reconstruct the signal. As a result of this, the Nyquist Theorem was created. Below, we will discuss just what exactly this theorem tells us.
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cnx.org/content/m10791/latest/
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The Nyquist Theorem, also known as the sampling theorem, is a principle that engineers follow in the digitization of analog signals. ... - The Nyquist Theorem, also known as the sampling theorem, is a principle that engineers follow in the digitization of analog signals. For analog-to-digital conversion (ADC) to result in...
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searchcio-midmarket.techtarget.com/sDefinition/0,,sid18...
searchcio-midmarket.techtarget.com/sDefinition/0,,sid183_gci812005,00.html
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Also called Nyquist's Theorem. Before sound as acoustic energy can be manipulated on a computer, it must first be converted to electrical energy (using a transducer such as a microphone) and then transformed through an analog-to-digital converter into a digital representation.
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www.webopedia.com/TERM/C/Nyquists_Law.html
www.webopedia.com/TERM/C/Nyquists_Law.html
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Now if we sample at twice the sample frequency, i.e Nyquist Rate, we start to make some progress. An alternative way of viewing thr waveform (re)genereation is to think of straight lines joining up the peaks of the samples.
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www.cs.cf.ac.uk/Dave/Multimedia/node149.html
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Introduction to the sampling theorem. Some practical issues regarding Nyquist rate, and the over sampling. ... The sampling theorem is considered to have been articulated by Nyquist in 1928 and mathematically proven by Shannon in 1949. Some books use the term "Nyquist Sampling Theorem", and others use "Shannon...
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www.efunda.com/designstandards/sensors/methods/DSP_nyqu...
www.efunda.com/designstandards/sensors/methods/DSP_nyquist.cfm
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