What is it?
As a sinoidal signal in the time domain can be defined as
s(time)=amplitude * sin(2Pi*frequency * time + phase)
the phase describes an 'offset' of the signal along the time axis and defines the 'zero crossing' of the signal. An sinoid signal is periodic, therefore usually only phase values from +/-180deg are used.
You see here an sinoidal signal with a frequency of 1kHz and an amplitude of 2 Volts. Time scale is -1msec..+1msec. The signal is shown with 3 different phases, from left to right:
- -60 degree
- 0 degree
- +60 degree
should/can we type TeX? is this supported by our wiki setup?