Ringing (signal)

This article is about ringing in electronics and signals generally. For ringing artifacts in signal processing, particularly image processing, see ringing artifacts. For Ringing in telephony, see Ringing (telephony).
An illustration of overshoot, followed by ringing and settle time.

In electronics, signal processing, and video, ringing is oscillation of a signal, particularly in the step response (the response to a sudden change in input). Often ringing is undesirable, but not always, as in the case of resonant inductive coupling. It is also known as hunting.[1]

It is also known as ripple, particularly in electricity or in frequency domain response.

  1. ^ Oxford English Dictionary (2nd ed.). Oxford University Press. 1989. f. The action of a machine, instrument, system, etc., that is hunting (see hunt v. 7b); an undesirable oscillation about an equilibrium speed, position, or state.