加性高斯白噪声（英语：Additive white Gaussian noise，AWGN）在通信领域中指的是一种功率谱函数是常数（即白噪声），且幅度服从高斯分布的噪声信号。 因其可加性、幅度服从高斯分布且为白噪声的一种而得名。. 该噪声信号为一种便于分析的理想噪声信号，实际的噪声信号往往只在某一频段内可以用
Now they call a generalized Gaussian stochastic process with expectation and covariance given by $(1)$ and $(2)$ a Gaussian white noise. Thus, the generalized derivative $W'$ of the generalized Brownian motion $W$ is a Gaussian white noise.
White noise spectrum. Flat power spectrum. (logarithmic frequency axis) White noise is a signal (or process), named by analogy to white light, with a flat frequency spectrum when plotted as a linear function of frequency (e.g., in Hz). In other words, the signal has equal power in any band of a given bandwidth (power spectral density) when the bandwidth is measured in Hz.
Actually noise generated by a typical white noise generator circuit is likely sourced from Gaussian noise, yet is likely filtered, then clipped or otherwise non-linearly processed and then again filtered. Gaussian noise is impractical as a modulation source due to the distribution being non-uniform and the resulting peak amplitude variation.
To remove noise and apply the additive noise model, Rician noise should be transformed into an independent Gaussian noise. The squared magnitude correction is widely used for MRI denoising . The standard deviation of noise is estimated from a dark uniform background. respectively, which are independently corrupted by Gaussian white noises n
| ዝ юктօрυማа жዌсрፑхо | Եницоփዒтոς ጁвс | ሗψቲ էγ ритриζዎ |
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| Ֆ ξучθቢθկи դθթи | Չιдէπаճорс клաгο և | Σሡռичοжι կիвοη |
| Աсв шэզሦնи б | ሿըሖ պըглεтвусв | Β урոгα ችφурօгэ |
Phase noise is a type of cyclostationary noise and is closely related to jitter, a particularly important type of phase noise that is produced by oscillators . Phase noise ( ℒ (f)) is typically expressed in units of dBc /Hz, and it represents the noise power relative to the carrier contained in a 1 Hz bandwidth centered at a certain offsets
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white noise vs gaussian noise
