## Finite Impulse Response

<*electronics, DSP*>

(FIR) A type of digital signal filter, in which every sample of output is the weighted sum of past and current samples of input, using only some finite number of past samples.

Last updated: 2001-06-06

### Nearby terms:

finite differencing ♦ **Finite Impulse Response** ♦ Finite State Automata

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