Say I have a binary FSK with
-f frequencies and I have two samples per symbol.
Let's consider the "1) multiply with
-f then 2) integrate over the number of samples per symbol, 3) take absolute value, 4) take the difference" demodulator.
Lets call this type of demodulator
Integrating FSK Demodulator.
If I have only two samples per symbol, then is the
Integrating FSK Demodulator the same as if I would just use a differential FM demodulator (which takes 2 consecutive samples into account) ?
If they are different, what is the difference ?