Hi Gerhard,
I see no demodulation in your pictures, it seems you just filtered the
signal. I would need some background information.
What is the sample rate and the input signal frequency. If the sample
rate is much higher, just measure the pulse length by measuring the
amplitude and use a com
Hi Gerhard,
if I interpret your interpretation correctly, you assign a 1 to "long
period", and a 0 to a "short period"? That would be an FSK inside an
FSK; such systems exist (often for things like put data on a readily
available FM modulator), but from the picture of your signal it's hard
to tell