Post by engrasad on Dec 30, 2010 1:46:23 GMT -5
hello to All.
as part of my work i want to add AWGN in my matlab program .
it can be easily done by randn function.
like this
Noise = ( randn( 1,data ) + j * randn( 1,data) )
but my teacher told me once that multiply it also with
*10.^(SNRdb/20)
to normalize the Energy to 1 !
can any one explain it what is meant by Normalization the energy to one
as part of my work i want to add AWGN in my matlab program .
it can be easily done by randn function.
like this
Noise = ( randn( 1,data ) + j * randn( 1,data) )
but my teacher told me once that multiply it also with
*10.^(SNRdb/20)
to normalize the Energy to 1 !
can any one explain it what is meant by Normalization the energy to one
