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GATE ECE 1993 | Question-61

Which of the following demodulator(s) can be used tor demodulating the signal $x(t)=5(1+2 \cos 2000 \pi t) \cos 2000 \pi t .$

  1. Envelope demodulator
  2. Square-law demodulator
  3. Synchronous demodulator
  4. None of these

     

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