Feb 16, 2013 #1 M mcpark Newbie level 1 Joined Feb 16, 2013 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,286 I want my codes to pass through AWGN channel in MATLAB. MATLAB have a function, AWGN case1 : y = awgn(x,snr) case2 : y = awgn(x,snr,sigpower) case3 : y = awgn(x,snr,'measured') . . . Accoding to the Description, using case1 power of x must be 0 dBW. why do that? Why power of signal is to be zero?? also when power of signal is not zero, How happen? sincerely
I want my codes to pass through AWGN channel in MATLAB. MATLAB have a function, AWGN case1 : y = awgn(x,snr) case2 : y = awgn(x,snr,sigpower) case3 : y = awgn(x,snr,'measured') . . . Accoding to the Description, using case1 power of x must be 0 dBW. why do that? Why power of signal is to be zero?? also when power of signal is not zero, How happen? sincerely