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- Additive_white_Gaussian_noise abstract "Additive white Gaussian noise (AWGN) is a basic noise model used in Information theory to mimic the effect of many random processes that occur in nature. The modifiers denote specific characteristics: 'Additive' because it is added to any noise that might be intrinsic to the information system. 'White' refers to idea that it has uniform power across the frequency band for the information system. It is an analogy to the color white which has uniform emissions at all frequencies in the visible spectrum. 'Gaussian' because it has a normal distribution in the time domain with an average time domain value of zero.Wideband noise comes from many natural sources, such as the thermal vibrations of atoms in conductors (referred to as thermal noise or Johnson-Nyquist noise), shot noise, black body radiation from the earth and other warm objects, and from celestial sources such as the Sun. The central limit theorem of probability theory indicates that the summation of many random processes will tend to have distribution called Gaussian or Normal.AWGN is often used as a channel model in which the only impairment to communication is a linear addition of wideband or white noise with a constant spectral density (expressed as watts per hertz of bandwidth) and a Gaussian distribution of amplitude. The model does not account for fading, frequency selectivity, interference, nonlinearity or dispersion. However, it produces simple and tractable mathematical models which are useful for gaining insight into the underlying behavior of a system before these other phenomena are considered. The AWGN channel is a good model for many satellite and deep space communication links. It is not a good model for most terrestrial links because of multipath, terrain blocking, interference, etc. However, for terrestrial path modeling, AWGN is commonly used to simulate background noise of the channel under study, in addition to multipath, terrain blocking, interference, ground clutter and self interference that modern radio systems encounter in terrestrial operation.".
- Additive_white_Gaussian_noise wikiPageID "202097".
- Additive_white_Gaussian_noise wikiPageRevisionID "594384886".
- Additive_white_Gaussian_noise hasPhotoCollection Additive_white_Gaussian_noise.
- Additive_white_Gaussian_noise subject Category:Communication.
- Additive_white_Gaussian_noise subject Category:Noise.
- Additive_white_Gaussian_noise subject Category:Time_series_models.
- Additive_white_Gaussian_noise type Assistant109815790.
- Additive_white_Gaussian_noise type CausalAgent100007347.
- Additive_white_Gaussian_noise type LivingThing100004258.
- Additive_white_Gaussian_noise type Model110324560.
- Additive_white_Gaussian_noise type Object100002684.
- Additive_white_Gaussian_noise type Organism100004475.
- Additive_white_Gaussian_noise type Person100007846.
- Additive_white_Gaussian_noise type PhysicalEntity100001930.
- Additive_white_Gaussian_noise type TimeSeriesModels.
- Additive_white_Gaussian_noise type Whole100003553.
- Additive_white_Gaussian_noise type Worker109632518.
- Additive_white_Gaussian_noise type YagoLegalActor.
- Additive_white_Gaussian_noise type YagoLegalActorGeo.
- Additive_white_Gaussian_noise comment "Additive white Gaussian noise (AWGN) is a basic noise model used in Information theory to mimic the effect of many random processes that occur in nature. The modifiers denote specific characteristics: 'Additive' because it is added to any noise that might be intrinsic to the information system. 'White' refers to idea that it has uniform power across the frequency band for the information system.".
- Additive_white_Gaussian_noise label "AWGN".
- Additive_white_Gaussian_noise label "Additive white Gaussian noise".
- Additive_white_Gaussian_noise label "Additives weißes gaußsches Rauschen".
- Additive_white_Gaussian_noise label "Аддитивный белый гауссовский шум".
- Additive_white_Gaussian_noise label "加性高斯白噪声".
- Additive_white_Gaussian_noise sameAs Additives_weißes_gaußsches_Rauschen.
- Additive_white_Gaussian_noise sameAs AWGN.
- Additive_white_Gaussian_noise sameAs m.01cqcw.
- Additive_white_Gaussian_noise sameAs Q353292.
- Additive_white_Gaussian_noise sameAs Q353292.
- Additive_white_Gaussian_noise sameAs Additive_white_Gaussian_noise.
- Additive_white_Gaussian_noise wasDerivedFrom Additive_white_Gaussian_noise?oldid=594384886.
- Additive_white_Gaussian_noise isPrimaryTopicOf Additive_white_Gaussian_noise.