Dec 26, 2006 #1 N nigosawa Junior Member level 1 Joined Dec 21, 2006 Messages 19 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,434 in many calculations i have seen using variance of signals and noise for SNR calculations. just wondering is variance representative of power or somewhat equivalent to it? please elaborate why variance is used instead of signal energy or power
in many calculations i have seen using variance of signals and noise for SNR calculations. just wondering is variance representative of power or somewhat equivalent to it? please elaborate why variance is used instead of signal energy or power
Dec 28, 2006 #2 Z zeerum Junior Member level 3 Joined Nov 26, 2006 Messages 27 Helped 2 Reputation 4 Reaction score 1 Trophy points 1,283 Activity points 1,481 Re: snr hmm no replies yet me too waiting to know the reason
Dec 29, 2006 #3 safwatonline Advanced Member level 4 Joined Nov 19, 2005 Messages 1,341 Helped 219 Reputation 438 Reaction score 48 Trophy points 1,328 Location EGYPT Activity points 9,038 snr variance is AC power , while mean^2 is DC power and there sum is the total power
Dec 30, 2006 #4 N nigosawa Junior Member level 1 Joined Dec 21, 2006 Messages 19 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,434 Re: snr thnx safwatonline u got three points now