Impulse response

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Notion

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Science and technology

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What Wikipedia says

In signal processing and control theory, the impulse response, or impulse response function (IRF), of a dynamic system is its output when presented with a brief input signal, called an impulse (δ(t)). More generally, an impulse response is the reaction of any dynamic system in response to some external change.

Excerpt from the Wikipedia article “Impulse response”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Iain 09:41, 7 June 2006 (UTC), Public domain, via Wikimedia Commons.