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Pulse (signal processing)

From Wikipedia, the free encyclopedia

In signal processing, the term pulse has the following meanings:

1. 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.
2. 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.^[1]

Examples of pulse shapes: 
(a)rectangular pulse, 
(b) cosine squared (raised cosine) pulse, 
(c) Dirac pulse,
 (d)sinc pulse, 
(e) Gaussian pulse