Question

To avoid aliasing, the wideband ADC is ____ by anti-aliasing filters to suitably alter the _____ waveform.

a.

succeeded, digital

b.

preceded, digital

c.

succeeded, analog

d.

preceded, analog

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Answer: (d).preceded, analog Explanation:Aliasing prevents faithful restoration of the signal. To avoid aliasing, the wideband ADC is preceded by anti-aliasing filters to suitably alter the analog waveform. The filters must have satisfactory stop-band attenuation.

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Q. To avoid aliasing, the wideband ADC is ____ by anti-aliasing filters to suitably alter the _____ waveform.

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