In signal processing, the Nyquist frequency (or folding frequency), named after Harry Nyquist, is a characteristic of a sampler, which converts a continuous function or signal into a discrete sequence.

Jul 23, 2025 · The Nyquist Sampling Theorem explains the relationship between the sample rate and the frequency of the measured signal. It is used to suggest that the sampling rate must be twice the …

What Is the Nyquist Theorem? The Nyquist theorem, also known as the Nyquist–Shannon sampling theorem, defines the conditions under which a continuous-time signal can be sampled and perfectly …

5 days ago · The Nyquist frequency, also called the Nyquist limit, is the highest frequency that can be coded at a given sampling rate in order to be able to fully reconstruct the signal, i.e., f_ (Nyquist)=1/2nu.

Simply stated, the Nyquist criterion requires that the sampling frequency be at least twice the highest frequency contained in the signal, or information about the signal will be lost.

The Nyquist theorem is defined as the principle that the highest frequency that can be accurately represented in a sampled signal is half of the sampling rate. It specifies the minimum sampling rate …

Mar 6, 2025 · The Nyquist frequency is one of the most important concepts in digital audio (whether you’re aware of it or not). It influences everything from sampling rate choices to avoiding aliasing …

Aug 6, 2025 · This page titled Chapter 5: Discrete Fourier Transforms, Nyquist Frequency, Signal Aliasing, and Spectral Leakage is shared under a CC BY-NC-ND license and was authored, remixed, …

Jan 13, 2025 · The Nyquist frequency is the maximum frequency at which a signal can be sampled without losing information. This frequency is named after Harry Nyquist, who first described it in 1928.

Definition The Nyquist Rate is the minimum sampling rate required to accurately capture a signal's information without introducing aliasing, specifically defined as twice the highest frequency present in …