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Consider the following statements associated with the synchronous detection method for detection/demodulation of AM signals:
1. The circuit complexity is very less.
2. It introduces frequency and phase errors only.
3. it does not require any locally generated synchronous carrier.
4. It can be used for DSB-SC, SSB and VSB but not for DSB-FC.
Which of the statements given above is/are correct?
1. The circuit complexity is very less.
2. It introduces frequency and phase errors only.
3. it does not require any locally generated synchronous carrier.
4. It can be used for DSB-SC, SSB and VSB but not for DSB-FC.
Which of the statements given above is/are correct?
- a)1, 3 and 4
- b)2 and 4 only
- c)1, 2 and 3
- d)3 and 4 only
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Consider the following statements associated with the synchronous dete...
• The circuit complexity of synchronous detection is very high. Hence, statement-1 is not correct.
• Statement-2 is correct.
• Synchronous detection require a locally generated synchronous carrier. Hence, statement-3 is not correct.
• Statement-4 is correct because synchronous detection is used for DSB-SC, SSB and VSB while envelope detection is used for DSB-FC only.
• Statement-2 is correct.
• Synchronous detection require a locally generated synchronous carrier. Hence, statement-3 is not correct.
• Statement-4 is correct because synchronous detection is used for DSB-SC, SSB and VSB while envelope detection is used for DSB-FC only.
Most Upvoted Answer
Consider the following statements associated with the synchronous dete...
Synchronous Detection Method for AM Signals
The synchronous detection method is a technique used for demodulating or detecting amplitude modulated (AM) signals. It involves the use of a locally generated synchronous carrier signal to recover the original message signal. Let's analyze each statement given in the question:
1. The circuit complexity is very less.
This statement is incorrect. The circuit complexity of synchronous detection is relatively higher compared to other detection methods like envelope detection. It requires the generation and synchronization of a carrier signal, which adds complexity to the circuit.
2. It introduces frequency and phase errors only.
This statement is correct. Synchronous detection introduces frequency and phase errors due to the imperfect matching of the carrier frequency and phase between the transmitter and receiver. These errors can result in distortion or loss of the demodulated signal.
3. It does not require any locally generated synchronous carrier.
This statement is incorrect. Synchronous detection requires the generation of a locally generated synchronous carrier signal. This carrier signal should have the same frequency and phase as the carrier signal used for modulation at the transmitter. The locally generated carrier is then multiplied with the received modulated signal to extract the message signal.
4. It can be used for DSB-SC, SSB, and VSB but not for DSB-FC.
This statement is correct. Synchronous detection can be used for demodulating Double Sideband Suppressed Carrier (DSB-SC), Single Sideband (SSB), and Vestigial Sideband (VSB) signals. However, it cannot be used for Double Sideband Full Carrier (DSB-FC) signals since the carrier is not suppressed in DSB-FC modulation. The synchronous detection method relies on the suppression of the carrier for demodulation.
To summarize:
- Statement 1 is incorrect as the circuit complexity is relatively higher.
- Statement 2 is correct as synchronous detection introduces frequency and phase errors.
- Statement 3 is incorrect as synchronous detection requires a locally generated synchronous carrier.
- Statement 4 is correct as synchronous detection can be used for DSB-SC, SSB, and VSB but not for DSB-FC signals.
The synchronous detection method is a technique used for demodulating or detecting amplitude modulated (AM) signals. It involves the use of a locally generated synchronous carrier signal to recover the original message signal. Let's analyze each statement given in the question:
1. The circuit complexity is very less.
This statement is incorrect. The circuit complexity of synchronous detection is relatively higher compared to other detection methods like envelope detection. It requires the generation and synchronization of a carrier signal, which adds complexity to the circuit.
2. It introduces frequency and phase errors only.
This statement is correct. Synchronous detection introduces frequency and phase errors due to the imperfect matching of the carrier frequency and phase between the transmitter and receiver. These errors can result in distortion or loss of the demodulated signal.
3. It does not require any locally generated synchronous carrier.
This statement is incorrect. Synchronous detection requires the generation of a locally generated synchronous carrier signal. This carrier signal should have the same frequency and phase as the carrier signal used for modulation at the transmitter. The locally generated carrier is then multiplied with the received modulated signal to extract the message signal.
4. It can be used for DSB-SC, SSB, and VSB but not for DSB-FC.
This statement is correct. Synchronous detection can be used for demodulating Double Sideband Suppressed Carrier (DSB-SC), Single Sideband (SSB), and Vestigial Sideband (VSB) signals. However, it cannot be used for Double Sideband Full Carrier (DSB-FC) signals since the carrier is not suppressed in DSB-FC modulation. The synchronous detection method relies on the suppression of the carrier for demodulation.
To summarize:
- Statement 1 is incorrect as the circuit complexity is relatively higher.
- Statement 2 is correct as synchronous detection introduces frequency and phase errors.
- Statement 3 is incorrect as synchronous detection requires a locally generated synchronous carrier.
- Statement 4 is correct as synchronous detection can be used for DSB-SC, SSB, and VSB but not for DSB-FC signals.
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Consider the following statements associated with the synchronous detection method for detection/demodulation of AM signals:1. The circuit complexity is very less.2. It introduces frequency and phase errors only.3. it does not require any locally generated synchronous carrier.4. It can be used for DSB-SC, SSB and VSB but not for DSB-FC.Which of the statements given above is/are correct?a)1, 3 and 4 b)2 and 4 onlyc)1, 2 and 3 d)3 and 4 onlyCorrect answer is option 'B'. Can you explain this answer?
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Consider the following statements associated with the synchronous detection method for detection/demodulation of AM signals:1. The circuit complexity is very less.2. It introduces frequency and phase errors only.3. it does not require any locally generated synchronous carrier.4. It can be used for DSB-SC, SSB and VSB but not for DSB-FC.Which of the statements given above is/are correct?a)1, 3 and 4 b)2 and 4 onlyc)1, 2 and 3 d)3 and 4 onlyCorrect answer is option 'B'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about Consider the following statements associated with the synchronous detection method for detection/demodulation of AM signals:1. The circuit complexity is very less.2. It introduces frequency and phase errors only.3. it does not require any locally generated synchronous carrier.4. It can be used for DSB-SC, SSB and VSB but not for DSB-FC.Which of the statements given above is/are correct?a)1, 3 and 4 b)2 and 4 onlyc)1, 2 and 3 d)3 and 4 onlyCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements associated with the synchronous detection method for detection/demodulation of AM signals:1. The circuit complexity is very less.2. It introduces frequency and phase errors only.3. it does not require any locally generated synchronous carrier.4. It can be used for DSB-SC, SSB and VSB but not for DSB-FC.Which of the statements given above is/are correct?a)1, 3 and 4 b)2 and 4 onlyc)1, 2 and 3 d)3 and 4 onlyCorrect answer is option 'B'. Can you explain this answer?.
Consider the following statements associated with the synchronous detection method for detection/demodulation of AM signals:1. The circuit complexity is very less.2. It introduces frequency and phase errors only.3. it does not require any locally generated synchronous carrier.4. It can be used for DSB-SC, SSB and VSB but not for DSB-FC.Which of the statements given above is/are correct?a)1, 3 and 4 b)2 and 4 onlyc)1, 2 and 3 d)3 and 4 onlyCorrect answer is option 'B'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about Consider the following statements associated with the synchronous detection method for detection/demodulation of AM signals:1. The circuit complexity is very less.2. It introduces frequency and phase errors only.3. it does not require any locally generated synchronous carrier.4. It can be used for DSB-SC, SSB and VSB but not for DSB-FC.Which of the statements given above is/are correct?a)1, 3 and 4 b)2 and 4 onlyc)1, 2 and 3 d)3 and 4 onlyCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements associated with the synchronous detection method for detection/demodulation of AM signals:1. The circuit complexity is very less.2. It introduces frequency and phase errors only.3. it does not require any locally generated synchronous carrier.4. It can be used for DSB-SC, SSB and VSB but not for DSB-FC.Which of the statements given above is/are correct?a)1, 3 and 4 b)2 and 4 onlyc)1, 2 and 3 d)3 and 4 onlyCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Consider the following statements associated with the synchronous detection method for detection/demodulation of AM signals:1. The circuit complexity is very less.2. It introduces frequency and phase errors only.3. it does not require any locally generated synchronous carrier.4. It can be used for DSB-SC, SSB and VSB but not for DSB-FC.Which of the statements given above is/are correct?a)1, 3 and 4 b)2 and 4 onlyc)1, 2 and 3 d)3 and 4 onlyCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electronics and Communication Engineering (ECE).
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