Time and frequency domains
Time and frequency domains are representation of signals on
the paper. This representation use values of amplitude, frequency, and time.
Amplitude, frequency, and phase are some properties which describe a wave. An
amplitude is its height from the axis. Frequency is described as number of
cycles per second. Whereas a phase change occurs whenever there is a shift in
wave either forwards or backwards.
Time domain
A time-domain plot is nothing but a graphical representation
of a wave on paper between x-axis as time axis and y-axis as amplitude axis.
Time-domain plot of a simple sine wave is shown above.
Frequency domain
A frequency-domain plot is a graphical representation of a
wave on paper between x-axis as frequency axis and y-axis as amplitude axis.
Frequency-domain plot of the same sine wave is shown above. A sine wave in a
time-domain plot is represented by a single spike in a frequency-domain plot.
