英语词汇“Nyquist criterion”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

Nyquist criterion

/ˈnʌɪkwɪst

noun Electronics

A criterion for determining the stability or instability of a feedback system.Assuming we're dealing with low pass signals - signals where the bandwidth of interest goes from 0 to f MAX, the Nyquist criterion states that our sampling frequency needs to be at least 2 * f MAX....

Thus, applying the Nyquist criterion, the resolution of 512 pixel/line images larger than 32 m is limited by sampling frequency, whereas images smaller than 32 m are limited by other aspects of the image acquisition.
The Nyquist criterion must still be satisfied with respect to the new lower sampling frequency in order to avoid aliasing.

Origin

1930s: named after Harry Nyquist (1889–1976), Swedish-born American engineer.

单词	Nyquist criterion
释义	Nyquist criterion /ˈnʌɪkwɪst / noun Electronics A criterion for determining the stability or instability of a feedback system.Assuming we're dealing with low pass signals - signals where the bandwidth of interest goes from 0 to f MAX, the Nyquist criterion states that our sampling frequency needs to be at least 2 * f MAX.... Thus, applying the Nyquist criterion, the resolution of 512 pixel/line images larger than 32 m is limited by sampling frequency, whereas images smaller than 32 m are limited by other aspects of the image acquisition. The Nyquist criterion must still be satisfied with respect to the new lower sampling frequency in order to avoid aliasing. Origin 1930s: named after Harry Nyquist (1889–1976), Swedish-born American engineer.
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