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Question: Answered & Verified by Expert
The function of a detector is to demodulate the modulated carrier wave and the steps for this process are
PhysicsCommunication SystemTS EAMCETTS EAMCET 2020 (14 Sep Shift 1)
Options:
  • A demodulation and filtering
  • B demodulation and rectification
  • C rectification and filtering
  • D regeneration and filtering
Solution:
2847 Upvotes Verified Answer
The correct answer is: rectification and filtering
In demodulation process, the detector performs following functions.
(a) Rectification To convert all the negative going peaks into positive going peaks, effectively doubling the frequency of the carrier in modulated wave.
b) Filtering Separation of AC and DC.

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