Topic: Aliasing And Nyquist Frequency
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What is Nyquist frequency?
The shortest detectable frequency in a time series. All time series are, in practice, recorded at discrete time points (for example, one reading per second). Periodic variations that happen more rapidly than the shortest time interval canno... Read More »
Source: http://www.answers.com/topic/nyquist-frequency-in-math
What is the nyquist frequency in hz?
It varies based on the item in question; it's half the sampling frequency of a discrete signal processing system. Read More »
Source: http://www.chacha.com/question/what-is-the-nyquist-frequency-in-h...
What's the definition of nyquist frequency?
nyquist frequency: (telecommunication) twice the maximum frequency occurring in the transmitted signal Read More »
Source: http://www.kgbanswers.com/whats-the-definition-of-nyquist-frequen...
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Aliasing And Nyquist Frequency
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1. (telecommunication) twice the maximum frequency occurring in the transmitted signal
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Source: http://www.audioenglish.net/dictionary/nyquist_frequency.htm
Too vague a question. I don't know what "for 20 kHz" means. The Nyquist frequency for a sampled signal is half the sampling frequency. It's the highest frequency which you can accurately represent with that sampling rate. To work it out, di...
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Source: http://answers.yahoo.com/question/index?qid=20111103115217AA0uUL7
I seem to remember somewhere that 5Hz was a ballpark figure and the intergration time of the eye. Take a look at the website below. --- Temporal resolution, a finite amount of time required to collect and process information, there are limi...
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Source: http://answers.yahoo.com/question/index?qid=1006042402124
For any shape wave, the sampling frequency must be at least twice that of the maximum frequency content of what you wish to sample. The reasoning behind this is that you cannot reproduce parts of the signal that contain frequency components...
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Source: http://answers.yahoo.com/question/index?qid=20111211090051AA8kEcU
Q1:Nyquist frequency is half of discrete sampling freq. It means 20Hz. But don't forget about aliasing. Nyquist rate minimum sampling rate which avoid alising effect. It's more than two times of highest frequency of signal with no zero ener...
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Source: http://answers.yahoo.com/question/index?qid=20090325072513AAHe4jQ
You get aliasing . The Nyquist frequency is the highest frequency that can be represented by a particular sampling rate. Frequencies higher than this will be "folded over" to lower frequencies that can be represented at that rate.
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Source: http://www.indiana.edu/%7Eemusic/361/quiz2review.htm
