_base

Functions:

Name	Description
white_noise	Add a white noise to a signal y.
white_noise_var	Generate a white noise matrix (rows with zero mean).

white_noise

white_noise(
    y: ndarray, A_rel: float, seed: int | None = None
)

Add a white noise to a signal y.

noise amplitude= A_rel*(standard deviation of y)

Parameters:

Name	Type	Description	Default
y	ndarray	original signal	required
A_rel	float	relative amplitude (0<x<1) to the standard deviation of y	required
seed	int | None	random seed	None

white_noise_var

white_noise_var(
    L: int, Var: ndarray, seed: int | None = None
) -> ndarray

Generate a white noise matrix (rows with zero mean).

Parameters:

Name	Type	Description	Default
L	int	size (columns)	required
Var	ndarray	variance vector	required

Returns:

Type	Description
ndarray	white_noise_var(100,[1,1]) , noise matrix has two row vectors with variance=1