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Что (кто) такое finite impulse response filter - определение
TYPE OF FILTER IN SIGNAL PROCESSING
FIR filter; Finite Impulse Response; Fir filter; Window design method; Finite impulse response filter; Tap (signal processing); Feed-forward filter
![A direct form discrete-time FIR filter of order ''N''. The top part is an ''N''-stage delay line with ''N'' + 1 taps. Each unit delay is a ''z''<sup>−1</sup> operator in [[Z-transform]] notation.](https://commons.wikimedia.org/wiki/Special:FilePath/FIR Filter.svg?width=200 "A direct form discrete-time FIR filter of order ''N''. The top part is an ''N''-stage delay line with ''N'' + 1 taps. Each unit delay is a ''z''<sup>−1</sup> operator in [[Z-transform]] notation.")
![A lattice-form discrete-time FIR filter of order ''N''. Each unit delay is a ''z''<sup>−1</sup> operator in [[Z-transform]] notation.](https://commons.wikimedia.org/wiki/Special:FilePath/FIR Lattice Filter.png?width=200 "A lattice-form discrete-time FIR filter of order ''N''. Each unit delay is a ''z''<sup>−1</sup> operator in [[Z-transform]] notation.")
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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. This is in contrast to infinite impulse response (IIR) filters, which may have internal feedback and may continue to respond indefinitely (usually decaying).
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.
(2001-06-06)
Infinite Impulse Response
PROPERTY OF MANY LINEAR TIME-INVARIANT (LTI) SYSTEMS
IIR filter; Iir filter; Infinite-impulse-response; Infinite-impulse response; Infinite impulse response filter
<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)
Infinite impulse response
PROPERTY OF MANY LINEAR TIME-INVARIANT (LTI) SYSTEMS
IIR filter; Iir filter; Infinite-impulse-response; Infinite-impulse response; Infinite impulse response filter
Infinite impulse response (IIR) is a property applying to many linear time-invariant systems that are distinguished by having an impulse response h(t) which does not become exactly zero past a certain point, but continues indefinitely. This is in contrast to a finite impulse response (FIR) system in which the impulse response does become exactly zero at times t>T for some finite T, thus being of finite duration.
Impulse response
A DYNAMIC SYSTEM'S OUTPUT WHEN INPUTTED WITH A BRIEF INPUT SIGNAL
Impulse response function; Dynamic multipliers; Impulse Response
In signal processing, the impulse response, or impulse response function (IRF), of a dynamic system is its output when presented with a brief input signal, called an impulse. More generally, an impulse response is the reaction of any dynamic system in response to some external change.
Impulse
WIKIMEDIA DISAMBIGUATION PAGE
Impulse (mechanics); Impulsive; Impulses; Impulse (disambiguation); Impulsive (disambiguation); Impulsion (disambiguation); Impulse (novel); Impulse (film); Impulse (album)
II. Impulse ·noun The effect of an impelling force; motion produced by a sudden or momentary force.
III. Impulse ·noun The action of a force during a very small interval of time; the effect of such action; as, the impulse of a sudden blow upon a hard elastic body.
IV. Impulse ·noun The act of impelling, or driving onward with sudden force; impulsion; especially, force so communicated as to produced motion suddenly, or immediately.
V. Impulse ·noun A mental force which simply and directly urges to action; hasty inclination; sudden motive; momentary or transient influence of appetite or passion; propension; incitement; as, a man of good impulses; passion often gives a violent impulse to the will.
impulsive
WIKIMEDIA DISAMBIGUATION PAGE
Impulse (mechanics); Impulsive; Impulses; Impulse (disambiguation); Impulsive (disambiguation); Impulsion (disambiguation); Impulse (novel); Impulse (film); Impulse (album)
¦ adjective
1. acting or done without forethought.
2. Physics acting as an impulse.
Derivatives
impulsively adverb
impulsiveness noun
impulsivity noun
Impulse
WIKIMEDIA DISAMBIGUATION PAGE
Impulse (mechanics); Impulsive; Impulses; Impulse (disambiguation); Impulsive (disambiguation); Impulsion (disambiguation); Impulse (novel); Impulse (film); Impulse (album)
(a) An electro-magnetic impulse is the impulse produced upon the
luminiferous ether by an oscillatory discharge or other varying type of
current; the impulse is supposed to be identical, except as regards
wave-length, with a light wave.
(b) An electro-motive impulse is the electro-motive force which rises so
high as to produce an impulsive or oscillatory discharge, such as that
of a Leyden jar.
Impulsive
WIKIMEDIA DISAMBIGUATION PAGE
Impulse (mechanics); Impulsive; Impulses; Impulse (disambiguation); Impulsive (disambiguation); Impulsion (disambiguation); Impulse (novel); Impulse (film); Impulse (album)
·adj Actuated by impulse or by transient feelings.
II. Impulsive ·noun That which impels or gives an impulse; an impelling agent.
III. Impulsive ·adj Acting momentarily, or by impulse; not continuous;
- said of forces.
IV. Impulsive ·adj Having the power of driving or impelling; giving an impulse; moving; impellent.
impulsive
WIKIMEDIA DISAMBIGUATION PAGE
Impulse (mechanics); Impulsive; Impulses; Impulse (disambiguation); Impulsive (disambiguation); Impulsion (disambiguation); Impulse (novel); Impulse (film); Impulse (album)
a.
1.
Impelling, moving, propulsive.
2.
Passionate, rash, quick, hot, hasty.
Википедия
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. This is in contrast to infinite impulse response (IIR) filters, which may have internal feedback and may continue to respond indefinitely (usually decaying).
The impulse response (that is, the output in response to a Kronecker delta input) of an Nth-order discrete-time FIR filter lasts exactly samples (from first nonzero element through last nonzero element) before it then settles to zero.
FIR filters can be discrete-time or continuous-time, and digital or analog.
