Definitions from the Web
Nyquist Rate
Definition: The Nyquist rate, also known as the Nyquist frequency, is the minimum sample rate at which a continuous signal can be accurately recorded or reproduced without information loss. It is named after Harry Nyquist, an American engineer.
- As a noun (Digital Signal Processing):
- Sense 1: The minimum sampling rate required to prevent aliasing in a digital signal. It is twice the bandwidth of the input signal.
- Sense 2: The highest frequency that can be represented in a digital signal without folding back or causing distortion.
- As a verb phrase (General):
- Sense 1: To specify or determine the Nyquist rate for a specific signal.
Sample Sentences:
- The audio quality of a digital recording depends on whether the Nyquist rate was properly considered during the sampling process.
- In order to accurately capture the frequencies present in the music, an audio CD typically has a sampling rate of 44.1 kHz, which surpasses the Nyquist rate for human hearing.
- He adjusted the settings on the digital oscilloscope to set the Nyquist rate based on the bandwidth of the input signal.
- Given the limited bandwidth of the equipment, the technician ensured that the Nyquist rate was set low enough to avoid aliasing.
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