I have 2 analog signals that will be pulse waves. (They are sine waves input to the analog ports but the arduino does not read negative voltage so the input to the arduino's perspective is pulse waves).
I want to be able to calculate the phase delay between the 2 signals. the frequency of the input will be variable between 800hz-1khz and the time delay will be between 0-0.3ms.
What would the best implementation for this be?