Calculate Phaseshift on DSP ?

[minoss]

Hello to all

Is it possible to calculate the Phase Shift between 2 sine waves with different amplitudes on a DSP ??

Greetings Michael

 

[mr_ghz]

Hi minoss

There are several possibilities:
1.) Look for zero-crossing on both channels. Measure the frequency (time from zero-cross to zero-cross multiplied by 2) of one channel. Measure the difference between the zero-crosses (identical edge) of both channels. So you can calculate the phase shift.

2.) Transform the input-signal to a logical signal (only '1' and '0') XOR both channels and do a lowpass-filtering. The output-voltage is proportional to the phase (works only from 0° .. 180°)

Bye