of signal processing systems, especially filters. The mathematical limits for noise removal are set by information theory. Signal processing noise can...
7 KB (936 words) - 09:21, 1 May 2025
Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background...
25 KB (3,695 words) - 15:34, 24 December 2024
In signal processing, white noise is a random signal having equal intensity at different frequencies, giving it a constant power spectral density. The...
30 KB (4,020 words) - 16:50, 6 May 2025
component of noise in signal processing. In communication systems, noise is an error or undesired random disturbance of a useful information signal in a communication...
17 KB (2,201 words) - 20:04, 2 March 2025
Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort...
41 KB (4,522 words) - 19:59, 2 May 2025
Quantization, in mathematics and digital signal processing, is the process of mapping input values from a large set (often a continuous set) to output...
42 KB (6,363 words) - 05:18, 17 April 2025
A noise gate or simply gate is an electronic device or software that is used to control the volume of an audio signal. Comparable to a limiter, which...
15 KB (2,130 words) - 19:56, 28 March 2025
Signal processing is an electrical engineering subfield that focuses on analyzing, modifying and synthesizing signals, such as sound, images, potential...
23 KB (2,277 words) - 11:33, 10 May 2025
In signal processing theory, Gaussian noise, named after Carl Friedrich Gauss, is a kind of signal noise that has a probability density function (pdf)...
4 KB (409 words) - 23:41, 12 April 2025
multiple subject fields including signal processing, information theory and biology. In signal processing, a signal is a function that conveys information...
30 KB (3,517 words) - 19:45, 14 April 2025
In signal processing, sampling is the reduction of a continuous-time signal to a discrete-time signal. A common example is the conversion of a sound wave...
31 KB (3,131 words) - 18:58, 8 May 2025
needed] An analog signal is subject to electronic noise and distortion introduced by communication channels, recording and signal processing operations, which...
6 KB (594 words) - 19:13, 24 April 2025
Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide...
27 KB (3,021 words) - 21:30, 17 May 2025
Adaptive noise cancelling is a signal processing technique that is highly effective in suppressing additive interference or noise corrupting a received...
32 KB (4,165 words) - 23:10, 10 March 2025
the process of quantization or bit-depth reduction of a signal. Its purpose is to increase the apparent signal-to-noise ratio of the resultant signal. It...
10 KB (1,252 words) - 18:55, 24 March 2025
(as opposed to the discrete digital signal processing where the signal processing is carried out by a digital process). "Analog" indicates something that...
10 KB (1,621 words) - 14:47, 4 November 2024
as a result are ignored by signal state sensing circuitry. As a result, digital signals have noise immunity; electronic noise, provided it is not too great...
14 KB (1,567 words) - 01:01, 23 April 2025
of noise or noise spectrum refers to the power spectrum of a noise signal (a signal produced by a stochastic process). Different colors of noise have...
29 KB (3,597 words) - 17:25, 25 April 2025
Median filter (category Signal processing)
remove noise from an image, signal, and video. Such noise reduction is a typical pre-processing step to improve the results of later processing (for example...
12 KB (1,619 words) - 00:09, 1 April 2025
In signal theory, the noise floor is the measure of the signal created from the sum of all the noise sources and unwanted signals within a measurement...
3 KB (348 words) - 10:37, 3 May 2025
Signal averaging is a signal processing technique applied in the time domain, intended to increase the strength of a signal relative to noise that is...
5 KB (1,089 words) - 17:50, 28 November 2021
Noise figure (NF) and noise factor (F) are figures of merit that indicate degradation of the signal-to-noise ratio (SNR) that is caused by components in...
17 KB (2,336 words) - 13:29, 1 February 2025
In signal processing, signal subspace methods are empirical linear methods for dimensionality reduction and noise reduction. These approaches have attracted...
4 KB (524 words) - 05:21, 19 May 2024
Audio signal processing is a subfield of signal processing that is concerned with the electronic manipulation of audio signals. Audio signals are electronic...
14 KB (1,484 words) - 16:08, 23 December 2024
See media help. Pink noise, 1⁄f noise, fractional noise or fractal noise is a signal or process with a frequency spectrum such that the power spectral...
55 KB (6,607 words) - 09:20, 23 April 2025
information theory, digital communications, radio communications, signal processing, and spectroscopy and is one of the determinants of the capacity of...
16 KB (2,296 words) - 06:40, 8 May 2025
sources enhance the signal to noise ratio (SNR) or "signal-to-interference-plus-noise ratio (SINR)" track moving sources Array processing metrics are often...
36 KB (5,733 words) - 12:52, 31 December 2024
Typically the term “image noise” is used to refer to noise in 2D images, not 3D images. The original meaning of "noise" was "unwanted signal"; unwanted electrical...
29 KB (3,599 words) - 23:03, 9 May 2025
In signal processing, phase noise is the frequency-domain representation of random fluctuations in the phase of a waveform, corresponding to time-domain...
14 KB (1,790 words) - 09:49, 18 April 2025
In electronics engineering, video processing is a particular case of signal processing, in particular image processing, which often employs video filters...
4 KB (423 words) - 22:27, 20 October 2023