Pulse (signal processing)

The sinc pulse is of some significance in signal-processing theory but cannot be produced by a real generator for reasons of causality.

The pulses were more than 99 percent perfect and were produced using a simple laser and modulator.

It has the properties of infinite amplitude and its integral is the Heaviside step function.

It is used in testing, or theoretically predicting, the impulse response of devices and systems, particularly filters.

It has the properties of maximum steepness of transition with no overshoot and minimum group delay.