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A voice signal having frequency range of 300Hz to 3400 Hz is sampled at 8000 samples/sec. if the roll off factor is 1. compute the minimum system bandwidth required for the detection of PAM signal with no ISI and PCM if the samples are quantized to 8 levels. Comment on the system bandwidth for PCM and PAM transmission.?
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A voice signal having frequency range of 300Hz to 3400 Hz is sampled a...
Minimum Bandwidth for PAM Signal
To achieve no Inter-Symbol Interference (ISI) in Pulse Amplitude Modulation (PAM), the minimum bandwidth required can be determined using the Nyquist criterion. The formula for the minimum bandwidth (B) is given by:
- B = (1 + α) * (fs/2)
Where:
- α = Roll-off factor (given as 1)
- fs = Sampling frequency (8000 samples/sec)
Calculating the bandwidth:
- B = (1 + 1) * (8000/2) = 2 * 4000 = 8000 Hz
Minimum Bandwidth for PCM Signal
For Pulse Code Modulation (PCM), the minimum bandwidth required can be calculated using:
- B_pcm = fs * log2(L)
Where:
- L = Number of quantization levels (given as 8, which is 2^3)
Calculating the bandwidth:
- B_pcm = 8000 * log2(8) = 8000 * 3 = 24000 Hz
Comparison of System Bandwidth for PAM and PCM
- The minimum bandwidth for PAM is 8000 Hz.
- The minimum bandwidth for PCM is substantially higher at 24000 Hz.
Conclusion
- PAM is more bandwidth-efficient than PCM due to its lower bandwidth requirement, which is critical in systems where bandwidth is a limiting factor.
- However, PCM offers advantages in terms of noise immunity and error detection, making it suitable for digital communication systems.
Overall, the choice between PAM and PCM depends on specific application requirements, including bandwidth availability and desired signal integrity.
To achieve no Inter-Symbol Interference (ISI) in Pulse Amplitude Modulation (PAM), the minimum bandwidth required can be determined using the Nyquist criterion. The formula for the minimum bandwidth (B) is given by:
- B = (1 + α) * (fs/2)
Where:
- α = Roll-off factor (given as 1)
- fs = Sampling frequency (8000 samples/sec)
Calculating the bandwidth:
- B = (1 + 1) * (8000/2) = 2 * 4000 = 8000 Hz
Minimum Bandwidth for PCM Signal
For Pulse Code Modulation (PCM), the minimum bandwidth required can be calculated using:
- B_pcm = fs * log2(L)
Where:
- L = Number of quantization levels (given as 8, which is 2^3)
Calculating the bandwidth:
- B_pcm = 8000 * log2(8) = 8000 * 3 = 24000 Hz
Comparison of System Bandwidth for PAM and PCM
- The minimum bandwidth for PAM is 8000 Hz.
- The minimum bandwidth for PCM is substantially higher at 24000 Hz.
Conclusion
- PAM is more bandwidth-efficient than PCM due to its lower bandwidth requirement, which is critical in systems where bandwidth is a limiting factor.
- However, PCM offers advantages in terms of noise immunity and error detection, making it suitable for digital communication systems.
Overall, the choice between PAM and PCM depends on specific application requirements, including bandwidth availability and desired signal integrity.
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A voice signal having frequency range of 300Hz to 3400 Hz is sampled at 8000 samples/sec. if the roll off factor is 1. compute the minimum system bandwidth required for the detection of PAM signal with no ISI and PCM if the samples are quantized to 8 levels. Comment on the system bandwidth for PCM and PAM transmission.?
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A voice signal having frequency range of 300Hz to 3400 Hz is sampled at 8000 samples/sec. if the roll off factor is 1. compute the minimum system bandwidth required for the detection of PAM signal with no ISI and PCM if the samples are quantized to 8 levels. Comment on the system bandwidth for PCM and PAM transmission.? 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 A voice signal having frequency range of 300Hz to 3400 Hz is sampled at 8000 samples/sec. if the roll off factor is 1. compute the minimum system bandwidth required for the detection of PAM signal with no ISI and PCM if the samples are quantized to 8 levels. Comment on the system bandwidth for PCM and PAM transmission.? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A voice signal having frequency range of 300Hz to 3400 Hz is sampled at 8000 samples/sec. if the roll off factor is 1. compute the minimum system bandwidth required for the detection of PAM signal with no ISI and PCM if the samples are quantized to 8 levels. Comment on the system bandwidth for PCM and PAM transmission.?.
A voice signal having frequency range of 300Hz to 3400 Hz is sampled at 8000 samples/sec. if the roll off factor is 1. compute the minimum system bandwidth required for the detection of PAM signal with no ISI and PCM if the samples are quantized to 8 levels. Comment on the system bandwidth for PCM and PAM transmission.? 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 A voice signal having frequency range of 300Hz to 3400 Hz is sampled at 8000 samples/sec. if the roll off factor is 1. compute the minimum system bandwidth required for the detection of PAM signal with no ISI and PCM if the samples are quantized to 8 levels. Comment on the system bandwidth for PCM and PAM transmission.? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A voice signal having frequency range of 300Hz to 3400 Hz is sampled at 8000 samples/sec. if the roll off factor is 1. compute the minimum system bandwidth required for the detection of PAM signal with no ISI and PCM if the samples are quantized to 8 levels. Comment on the system bandwidth for PCM and PAM transmission.?.
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A voice signal having frequency range of 300Hz to 3400 Hz is sampled at 8000 samples/sec. if the roll off factor is 1. compute the minimum system bandwidth required for the detection of PAM signal with no ISI and PCM if the samples are quantized to 8 levels. Comment on the system bandwidth for PCM and PAM transmission.?, a detailed solution for A voice signal having frequency range of 300Hz to 3400 Hz is sampled at 8000 samples/sec. if the roll off factor is 1. compute the minimum system bandwidth required for the detection of PAM signal with no ISI and PCM if the samples are quantized to 8 levels. Comment on the system bandwidth for PCM and PAM transmission.? has been provided alongside types of A voice signal having frequency range of 300Hz to 3400 Hz is sampled at 8000 samples/sec. if the roll off factor is 1. compute the minimum system bandwidth required for the detection of PAM signal with no ISI and PCM if the samples are quantized to 8 levels. Comment on the system bandwidth for PCM and PAM transmission.? theory, EduRev gives you an
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