How to add white gaussian noise with specific variance using awgn?
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Georgios Orfanidis
il 21 Set 2021
Commentato: Georgios Orfanidis
il 27 Set 2021
I want to add white gaussian noise with a specific variance. How can I accomplish this by using either wgn or awgn functions?
Can I do something like that,
out = awgn(in, var=1);
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Prachi Kulkarni
il 24 Set 2021
Hi,
In the wgn function, if you set the power type to linear i.e. watts, the power of the noise signal is the variance itself.
So, you can generate Gaussian noise of variance noiseVar for a signal of dimensions m x n as follows.
wgn(m,n,noiseVar,'linear')
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