Finite

Finite impulse response example

Finite impulse response example
  1. What is meant by finite impulse response?
  2. What is a FIR filter used for?
  3. Is Butterworth a FIR or IIR?

What is meant by finite impulse response?

In signal processing, a finite impulse response (FIR) filter is a filter whose impulse response (or response to any finite length input) is of finite duration, because it settles to zero in finite time.

What is a FIR filter used for?

Finite impulse response (FIR) filters are widely used in communication [1], consumer electronics, audio [2], and other signal processing applications [3]. One of the important applications of FIR filters is as a Hilbert transformer.

Is Butterworth a FIR or IIR?

The classical IIR filters, Butterworth, Chebyshev Types I and II, elliptic, and Bessel, all approximate the ideal “brick wall” filter in different ways.

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