telecommunications, the term channel noise level has the following meanings: The ratio of the noise in the communication channel at any point in a transmission...

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 noise. SNR...

Active noise control (ANC), also known as noise cancellation (NC), or active noise reduction (ANR), is a method for reducing unwanted sound by the addition...

a communication channel. The noise is a summation of unwanted or disturbing energy from natural and sometimes man-made sources. Noise is, however, typically...

A noise barrier (also called a soundwall, noise wall, sound berm, sound barrier, or acoustical barrier) is an exterior structure designed to protect inhabitants...

High noise levels can contribute to cardiovascular effects in humans and an increased incidence of coronary artery disease. In animals, noise can increase...

level Channel noise level, some measure of noise in a communication channel Noise-equivalent target, intensity of a target when the signal-to-noise level...

Black noise Blue noise Burst noise Carrier-to-receiver noise density Channel noise level Circuit noise level Colors of noise Comfort noise Comfort noise generator...

Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort...

a codeword of length n {\displaystyle n} sent through the AWGN channel with noise level N {\displaystyle N} . When received, the codeword vector variance...

ear's response at moderate noise levels is approximated by A-weighting, two different noises with the same A-weighted level are not necessarily equally...

Noise regulation includes statutes or guidelines relating to sound transmission established by national, state or provincial and municipal levels of government...

pressure level (unit decibel, dB). Sound level meters are commonly used in noise pollution studies for the quantification of different kinds of noise, especially...

communication channel testing and modelling, Gaussian noise is used as additive white noise to generate additive white Gaussian noise. In telecommunications...

that the reception of noise by the observer is minimized. Acoustic quieting might consider: Noise generation: by limiting the noise at its source, Sympathetic...

Noise health effects are the physical and psychological health consequences of regular exposure to consistent elevated sound levels. Noise from traffic...

transmitted over a communications channel of a specified bandwidth in the presence of noise. It is an application of the noisy-channel coding theorem to the archetypal...

FAA offers sound-reducing for homes that fall within a noise contour where the average sound level is 65 dB SPL or greater. It is part of their Residential...

theory, the noisy-channel coding theorem (sometimes Shannon's theorem or Shannon's limit), establishes that for any given degree of noise contamination of...

are almost entirely noise, from which a small amount of information can be derived by sophisticated processing. Such a noise level would be unacceptable...

non-linear digital filtering technique, often used to remove noise from an image or signal. Such noise reduction is a typical pre-processing step to improve...

noise dosimeter (American English) or noise dosemeter (British English) is a specialized sound level meter intended specifically to measure the noise...

Adjacent-channel interference – Alarm sensor – Aliasing – Allied Electronics – Alternating current – AM radio – Amateur radio – Ambient noise level – American...

Shot noise or Poisson noise is a type of noise which can be modeled by a Poisson process. In electronics shot noise originates from the discrete nature...

a certain level, where most shipboard noise problems are reduced by controlling vibration. The main producers of mechanically created noise and vibration...

known as total variation regularization or total variation filtering, is a noise removal process (filter). It is based on the principle that signals with...

impurities in a conductive channel, generation and recombination noise in a transistor due to base current, and so on. 1/f noise in current or voltage is...

receiver's circuitry. The level of noise determines the maximum sensitivity and reception range of a radio receiver; if no noise were picked up with radio...

A noise gate is used when the level of the "signal" is above the level of the unwanted "noise". The threshold is set above the level of the "noise", and...

tape, there is a low level of noise in the background which sounds like hissing. One solution to this issue is to use low-noise tape, which records more...