infinite impulse response

Computing Dictionary

Infinite Impulse Response definition

electronics, DSP
A type of digital signal filter, in which every sample of output is the weighted sum of past and current samples of input, using all past samples, but the weights of past samples are an inverse function of the sample age, approaching zero for old samples.
(2001-06-06)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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