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Communication SystemsSampling

Aliasing occurs when?

  • ADifferent frequency components become indistinguishable after inadequate sampling
  • BThe carrier amplitude becomes zero
  • CA signal is amplified linearly
  • DQuantization levels become infinite
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Correct Answer: A. Different frequency components become indistinguishable after inadequate sampling
Explanation: Sampling below the required rate can cause spectral replicas to overlap, making different analog frequencies appear identical in the sampled data.
Reference: Standard communication systems: sampling
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