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Randomly generated SNR Values (MATLAB)

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prince_capri

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Hey, I wish to randomly generate SNR values between 0 and 35 dB. Does anyone know which function can be used to generate these values in Matlab?

Thanks!
 

Thanks Mowgli, That helps a bit.

However, I don't quite know what variance I am supposed to use. I know that the mean I need is 0, but I have no clue about variance. Any further help would be appreciated!
 

Hi

You can use the following code

SNR=35*rand; % generate a random value for SNR between 0 and 35
rx=awgn(tx,SNR); %add AWGN with SNR

Salam
Hossam Alzomor
www(.)i-g(.)org
 
Cheers Alzomor, that helps.

The only thing I would add is, 35dB needs to be converted to Linear value ;)
 

Hi prince_capri,

I think awgn use dB scale not linear scale.
The problem is that the value of the SNR will be from 0 to 35 dB and there will not be any negative values for the SNR if you use "SNR=35*rand;"

Salam
Hossam Alzomor
www(.)i-g(.)org
 

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