Pulse (signal processing)
signal processing, the term pulse has the following meanings:
#A rapid, transient change in the amplitude of a signal from a baseline value to a higher or lower value, followed by a rapid return to the baseline value.
#A rapid change in some characteristic of a signal, "e.g.," phase or
frequency, from a baseline value to a higher or lower value, followed by a rapid return to the baseline value.
Pulse shapes can arise out of a process called pulse-shaping. Optimum pulse shape depends on the application.
These can be found in
pulse waves, square waves, boxcar functions, and rectangular functions. In digital signals the up and down transitions between high and low levels are called the rising edgeand the falling edge. In digital systems the detection of these sides or action taken in response is termed edge-triggered, rising or falling depending on which side of rectangular pulse. A digital timing diagramis an example of a well-ordered collection of rectangular pulses.
"Original source": from
Federal Standard 1037Cand from MIL-STD-188
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