求翻译：本文中噪声的概率密度函数 为已知的零均值， 高斯分布， 且其方差通过Donoho的中值绝对偏差来估计，而信号的概率密度函数 通过GGD拟合得到，是什么意思？

The noise in this paper the probability density function known zero mean, Gaussian distribution and variance estimated by the median absolute deviation of donoho obtained by fitting the probability density function of the signal ggd

This article in the noise of the probability density function to the zero value is known, Gaussian distribution, and the variance of the values in the Donoho used to estimate absolute deviation, and the signal through the probability density function GGD fitting,

In this article the noise probability density function for the known zero average value, the Gaussian distribution, also its variance estimated through the Donoho value absolute deviation, but the signal probability density function obtains through the GGD fitting,

Probability density function of noise in this article is known to be zero mean, Gaussian distribution, and its variance estimates by Donoho median absolute deviation, and signals of the probability density function obtained by fitting GGD,

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