<*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.

Last updated: 2001-06-06

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**Nearby terms:**
inference rule « infimum « infinite « **Infinite Impulse Response** » infinite loop » Infinite Monkey Theorem » infinite set

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Copyright Denis Howe 1985