Should I increase the mean or the variance of Gaussian noise?

1. What is mean and variance in noise?
2. What is variance of Gaussian noise?
3. What is the mean and variance of white noise?
4. Why is mean of Gaussian noise zero?

What is mean and variance in noise?

The noise variance is calculated as the mean of the difference between these two frames, the corresponding signal value is calculated as the mean over all the signal values in these frames. The graph in Figure 1 (a) shows the variance plotted over the respective mean signal value.

What is variance of Gaussian noise?

For Gaussian noise, this implies that the filtered white noise can be represented by a sequence of independent, zero-mean, Gaussian random variables with variance of σ² = N_o W. Note that the variance of the samples and the rate at which they are taken are related by σ² = N_of_s/2.

What is the mean and variance of white noise?

White noise has zero mean, constant variance, and is uncorrelated in time. As its name suggests, white noise has a power spectrum which is uniformly spread across all allowable frequencies.

Why is mean of Gaussian noise zero?

Gaussian white noise (GWN) is a stationary and ergodic random process with zero mean that is defined by the following fundamental property: any two values of GWN are statis- tically independent now matter how close they are in time.