What is the relation between the noise variance and the average power of the noise?

[saeddawoud]

Hello every body
what is the relation between the noise variance and the average power in the noise??

 

[brmadhukar]

Re: A question

noise variance is the average noise power.

BRM

 

[saeddawoud]

Re: A question

Thank you
But is there any formula shows that, or the derivation of this result.

 

[Sal]

A question

It is here,

read about autocorrelation and power spectral density, regard tha it is white noise, i am not sure if this rule is valid for other types of noise

Sal

 

[ahmedseu]

Re: A question

Hi,
The word Variance means the average power and it is used for both signal and noise.

BR

 

[Shans60]

Re: A question

hello
actually average noise power and the variance means the same... any doubts u can clarify with Comm Systems with Haykin....