Noun
English Wikipedia has an article on:impulse responseWikipedia
impulse response (plural impulse responses)
(signal processing) Output of a dynamic system when presented with a brief input signal.
Impulse response and transfer function A linear time-invariant (LTI) filter can be uniquely specified by its impulse response h, and the output of any filter is mathematically expressed as the convolution of the input with that impulse response. Source: Internet