In the analogue-to-digital conversion process an analogue waveform is sampled
to form a series of pulses whose amplitude is the
amplitude of the sampled waveform at the time the sample
was taken. In natural sampling the pulse amplitude takes
the shape of the analogue waveform for the period of
the sampling pulse. Alternatively, in a process called flat top
sampling, the amplitude of the sampled pulse is held constant
at the value of the amplitude of the analogue waveform
at the time the sampling period began.
Other topics in our resources on Communications Systems related to Natural sampling include: