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Consider the following statements:
1. The figure of merit of DSB-SC and SSB receivers with coherent detection is 1.
2. The figure of merit of an AM receiver with envelope detection is more than 1.
3. If the average modulated signal power and the average noise power in the message bandwidth is same as that of DSB-SCreceiver then the output SNR and figure of merit of SSB coherent receiver is same as that of the DSB SC receiver.
4. A square-law demodulator operates above threshold on a weaker signal than with an envelope demodulator.
Which of the above statements are correct?
  • a)
    1, 3 and 4
  • b)
    2 and 4
  • c)
    1, 2 and 4
  • d)
    2 and 3
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements:1. The figure of merit of DSB-SC and...
Statement-1 is correct.
  • The figure of merit of an AM receiver with envelope detection is less than 1.

    Hence, statement-2 is false.
  • Statement-3 and 4 are correct.
Free Test
Community Answer
Consider the following statements:1. The figure of merit of DSB-SC and...
1. Statement 1:
The figure of merit of DSB-SC and SSB receivers with coherent detection is 1.
- This statement is correct. The figure of merit for DSB-SC and SSB receivers with coherent detection is indeed 1.

2. Statement 2:
The figure of merit of an AM receiver with envelope detection is more than 1.
- This statement is incorrect. The figure of merit for an AM receiver with envelope detection is typically less than 1.

3. Statement 3:
If the average modulated signal power and the average noise power in the message bandwidth are the same as that of a DSB-SC receiver, then the output SNR and figure of merit of an SSB coherent receiver is the same as that of the DSB-SC receiver.
- This statement is correct. When the average modulated signal power and noise power are the same, the output SNR and figure of merit of an SSB coherent receiver will be the same as that of a DSB-SC receiver.

4. Statement 4:
A square-law demodulator operates above threshold on a weaker signal than with an envelope demodulator.
- This statement is correct. A square-law demodulator can operate above the threshold on a weaker signal compared to an envelope demodulator.
Therefore, the correct statements are 1, 3, and 4.
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Consider the following statements:1. The figure of merit of DSB-SC and SSB receivers with coherent detection is 1.2. The figure of merit of an AM receiver with envelope detection is more than 1.3. If the average modulated signal power and the average noise power in the message bandwidth is same as that of DSB-SCreceiver then the output SNR and figure of merit of SSB coherent receiver is same as that of the DSB SC receiver.4. A square-law demodulator operates above threshold on a weaker signal than with an envelope demodulator.Which of the above statements are correct?a)1, 3 and 4b)2 and 4c)1, 2 and 4d)2 and 3Correct answer is option 'A'. Can you explain this answer?
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Consider the following statements:1. The figure of merit of DSB-SC and SSB receivers with coherent detection is 1.2. The figure of merit of an AM receiver with envelope detection is more than 1.3. If the average modulated signal power and the average noise power in the message bandwidth is same as that of DSB-SCreceiver then the output SNR and figure of merit of SSB coherent receiver is same as that of the DSB SC receiver.4. A square-law demodulator operates above threshold on a weaker signal than with an envelope demodulator.Which of the above statements are correct?a)1, 3 and 4b)2 and 4c)1, 2 and 4d)2 and 3Correct answer is option 'A'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Consider the following statements:1. The figure of merit of DSB-SC and SSB receivers with coherent detection is 1.2. The figure of merit of an AM receiver with envelope detection is more than 1.3. If the average modulated signal power and the average noise power in the message bandwidth is same as that of DSB-SCreceiver then the output SNR and figure of merit of SSB coherent receiver is same as that of the DSB SC receiver.4. A square-law demodulator operates above threshold on a weaker signal than with an envelope demodulator.Which of the above statements are correct?a)1, 3 and 4b)2 and 4c)1, 2 and 4d)2 and 3Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements:1. The figure of merit of DSB-SC and SSB receivers with coherent detection is 1.2. The figure of merit of an AM receiver with envelope detection is more than 1.3. If the average modulated signal power and the average noise power in the message bandwidth is same as that of DSB-SCreceiver then the output SNR and figure of merit of SSB coherent receiver is same as that of the DSB SC receiver.4. A square-law demodulator operates above threshold on a weaker signal than with an envelope demodulator.Which of the above statements are correct?a)1, 3 and 4b)2 and 4c)1, 2 and 4d)2 and 3Correct answer is option 'A'. Can you explain this answer?.
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