Bookmark.icon

Oversampling

The process of sampling a signal at a sampling frequency significantly higher than the Nyquist rate.

In signal processing, oversampling is the process of sampling a signal at a sampling frequency significantly higher than the Nyquist rate. Theoretically, a bandwidth-limited signal can be perfectly reconstructed if sampled at the Nyquist rate or above it. The Nyquist rate is defined as twice the bandwidth of the signal. Oversampling is capable of improving resolution and signal-to-noise ratio and can be helpful in avoiding aliasing and phase distortion by relaxing anti-aliasing filter performance requirements.

A signal is said to be oversampled by a factor of N if it is sampled at N times the Nyquist rate.

Key Terms

bandwidth
bandwidth limited signal
definition
nyquist rate
oversampling
process
sampling frequency
signal
signal processing
usage

Additional Resources

No ressources found.

Acronymn

(none found)

Synonymns

Oversampling
(none found)

Comments

No comment found.

Sources & Credits

Last modified on March 12 2020
Content adapted from Wikipedia
No credits found.
Videocide.com is service provided by Codecide, a company located in Chicago, IL USA.
linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram
Malcare WordPress Security