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Signals & SystemsSampling

Ideal reconstruction of a properly sampled band-limited signal is theoretically performed using a?

  • AIdeal low-pass reconstruction filter
  • BHigh-pass differentiator only
  • CRectifier
  • DLimiter only
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Correct Answer: A. Ideal low-pass reconstruction filter
Explanation: After ideal impulse-train sampling above the Nyquist rate, an ideal low-pass filter can select the original baseband spectral replica.
Reference: Standard signals and systems: sampling
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