Is the Gibbs phenomenon ever a factor?

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Question Posted / swapna

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Is the Gibbs phenomenon ever a factor?..

Answer / vinay m k

Yes Gibbs phenomenon becomes constraining when we are
analysing signals containing frequency tones quite close to
each other. If the side lobes of the windowing function are
significant then it leads to energy leakages between the
frequency bins/sub-bands. Thus very close lying frenecy
tones gets their magnitudes smeared up in the process.

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Is the Gibbs phenomenon ever a factor?..

Answer / lakshmi kumari

ya ,its a factor .
fir filters have the gibbs phenomenon.
windowing is the technique to reduce gibbs phenomenon

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7 Yes

3 No

Is the Gibbs phenomenon ever a factor?..

Answer / roy vincent

yes, this happens in FIR filters. In fir filter the series u write is finite. ie. u r truncating an infinite series (ideal) by using a window. if the series is fast converging, u may not have a problem. But if its slow, more terms which u left out will become more important. Such a kind of approximation causes Gibbs phenomenon.

Remember, this happens when the signal has fast transitions. Signal spikes appear.

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Is the Gibbs phenomenon ever a factor?..

Answer / bhagat singh

yes ,actually it's a factor in the condition in which our
system has discontinuities.

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3 Yes

1 No

Is the Gibbs phenomenon ever a factor?..

Answer / siddhant

The sidelobes are present in the frequency response of window function becausse of this sidelobe ringing (oscillations) is occured in the frequency response of FIR filter. This ringing is predominantly present near the band edge and it is known as Gibbs Phenomenon.

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