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Signals & SystemsSampling

According to the sampling theorem, a signal band-limited to 6 kHz should be sampled at at least?

  • A3 kHz
  • B6 kHz
  • C12 kHz
  • D36 kHz
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Correct Answer: C. 12 kHz
Explanation: The Nyquist rate is twice the highest signal frequency: fs≥2×6 kHz=12 kHz.
Reference: Standard signals and systems: sampling
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