I have a hard time teasing apart the conceptual difference between these three domains, and constantly mix them up in my head. I've been reading up on it, but I can't wrap my head around it.
- a time-domain graph shows how a signal changes over time: oscilliscope)
^ connected through Fourier transform v
a frequency-domain graph shows how much of the signal lies within each given frequency band over a range of frequencies.
- the 'spectrum' of frequency components is the frequency domain representation of the signal
spectral domain - ??
cepstral domain - ??
Any help or insight you could provide, at an undergraduate level of physics, would be so helpful to me.
Thanks a lot.