Nyquist limit. .
Nyquist limit. Nyquist frequency is the frequency whose cycle-length is twice the interval between samples, and it determines the highest frequency that can be preserved in a sampled signal without aliasing. Explore chapters and articles from various books and journals on ScienceDirect Topics. See examples of Fourier transforms and diffraction patterns with different Nyquist frequencies and limits. It is used to suggest that the sampling rate must be twice the highest frequency in the signal. Learn about Nyquist's theorem, aliasing, and under-sampling in signal processing and data conversion. e. Find out how to choose the appropriate PRF and baseline settings to avoid errors and artifacts. Jul 23, 2025 · The Nyquist Sampling Theorem explains the relationship between the sample rate and the frequency of the measured signal. Learn the definition, examples, and applications of Nyquist frequency in signal processing and sampling theory. , f_ (Nyquist)=1/2nu. Learn how the Nyquist limit, the resolution limit of a digital image, is defined and visualized in one, two and higher dimensions. Aug 6, 2023 · Learn about the Nyquist limit, the maximum Doppler shift frequency that can be measured without aliasing in ultrasound. In physics, the Nyquist limit is a fundamental concept in digital signal processing, particularly crucial in medical ultrasound. Sep 14, 2025 · 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. It states that to accurately reconstruct a signal, the sampling rate must be at least twice the highest frequency component of the original signal. . mhcmkh hnwk cjurs kxzk qnbx gbvmb aamrqd fhopz meh frezvvyt