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Increased pulse-width in the flat-top sampling leads to:

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Increased pulse-width in the flat-top sampling leads to:

(a) Attenuation of high frequencies in reproduction

(b) Attenuation of low frequencies in reproduction

(c) Greater aliasing errors in reproduction

(d) No harmful effects in reproduction

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This question is from Spectrum Analysis of Sampling Process in chapter Digital Control Systems of Control Systems

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Correct choice is (a) Attenuation of high frequencies in reproduction

Explanation: As pulse width is increased, the width of the first lobe of the spectrum is decreased. Hence, increased pulse-width in the flat-top sampling, leads to attenuation of high frequencies in reproduction.

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