language-icon Old Web
English
Sign In

Oversampling

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 highest frequency component in 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.

[ "Electronic engineering", "Computer vision", "Control theory", "Sampling (statistics)", "Electrical engineering", "Oversampling and undersampling in data analysis", "sigma delta quantization", "minority class" ]
Parent Topic
Child Topic
    No Parent Topic