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Multiplication/scaling factor for gaussian

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rajivn786

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Hi,


Can any one tell me by what factor do I need to multiply with randn command..

to plot BER graph for different values of SNR
 

Hi
You should multiply the Gaussian noise with sqrt of wanted noise power.
 

rajivn786 said:
Hi,


Can any one tell me by what factor do I need to multiply with randn command..

to plot BER graph for different values of SNR
Click to expand...

Hello!
If you're using MatLab you can use awgn function and change the SNR values directly.. for example using a "for" cicle.

If it so, you can type "help awgn" in MatLab's command window. ;)

Cheers,
mar_deepmode
 

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