Alberto, This facility exists on Spectrgram. Perhaps you can e-mail Richard Horne and see what he did. Mike, G3XDV == I am implementing both in Argo and Spectran a function that will display the rela
Andy, thanks for your suggestion. As a matter of fact I am already using your algorithm ! I use it to compute the brightness levels for the spectrogram, but only when AGC is on. So, with AGC on, the
One method for determining S/N ration in an environment where signals and noise are constantly changing - used a lot in Radar and Other techniques - is an algorithm called Constant False Alarm Rate.