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*5. Suppose an analog signal has an absolute bandwidth of 10 KHz. It is sampled at...
2) An analog video signal with a bandwidth of 5 MHz. is sampled at one and...
2) An analog video signal with a bandwidth of 5 MHz. is sampled at one and half times the Nyquist rate. The signal is then quantized using a uniform quantizer. The resulting output is then sent over a channel with a bandwidth of 94 MHz. using binary PAM with a raised cosine pulse with a roll-off factor of α = 0.25 a) Find the maximum number of quantiozation levels possible (2 Marks) b) Find the resulting Signal-to-Quantization-Noise Ratio (make any...
Answer all parts and show all steps please. 3323 Modern Digital and Analog Communication Question A...
Answer all parts and show all steps please.
3323 Modern Digital and Analog Communication Question A compact disc (CD) records audio signals digitally by using PCM. Assume that the audio signal bandwidth equals 15 kHz (a) If signal is sampled at the Nyquist rate and the samples are uniformly digitized into L 65,536 levels and then binary-coded, determine the number of bits required to encode a sample (b) If the audio signal has average power of 0.1 W and a...
A video signal has bandwidth of 4 MHz. This signal is sampled, quantized, and binary encoded...
A video signal has bandwidth of 4 MHz. This signal is sampled, quantized, and binary encoded using the PCM technique. The video signal amplitude is uniformly distributed in the range (-2, 2). If the signal is sampled at the Nyquist rate and quantized into 512 levels: (a) Determine the bit rate. (b) Determine the signal-to-quantization-noise ratio. (©) If the signal-to-quantization-noise ratio must be increased by a factor of 16, how you can achieve that? Will this affect the bit rate?...
Question 2 An analog signal with a power Pm-GW, and a bandwidth of 4kHz is sampled at a rate f, =...
Question 2 An analog signal with a power Pm-GW, and a bandwidth of 4kHz is sampled at a rate f, = 10ksamples/sec. (a) What value of A will lead to an SQNR of 55dB if uniform quantization is used? (b) If the peak voltage of m(t) is 8V, what value of L satisfies (a)? (c) How many bits per sample should be used? (d) What is the bit rate if we use the number of bits per sample from (c)?...
(5) A PCM system encodes samples using an 8-bit ADC. In the case of peak signal...
(5) A PCM system encodes samples using an 8-bit ADC. In the case of peak signal amplitude, estimate the signal to quantization noise ratio in dB (6) The output SQNR of a 10-bit PCM was found to be insufficient at 30 dB. To achieve the desired SQNR of 42 dB, an increase to the number of quantization levels was needed. Determine the fractional increase in the transmission bandwidth required. (7) A signal x(t) band-limited to 3kHz is sampled at a...
5.2-1 A compact dise (CD) records audio signals digitlly by using PCM. Let the au bandwidth...
5.2-1 A compact dise (CD) records audio signals digitlly by using PCM. Let the au bandwidth be 15 kHz. (a) If the Nyquist samples are uniformly quantized into L 65,5 (b) If the audio signal has average power of 0.1 W and peak voltage of 1 V, find the resulting (c) Determine the number of binary digits per second (bit/s) required to encode the audico (d) For practical reasons discussed in the text, signals are sampled at a rate well...
4. There is an analog signal whose bandwidith is knowm as 25 kHz. The signal is...
4. There is an analog signal whose bandwidith is knowm as 25 kHz. The signal is sampled at a rate which is 15% higher than the Nyquist rate. The sampled data are unfomly quantized with the quantization error no larger than 0.1% of the peak magnitude of the spal. Given the avalable channel bandwidth being 100 kiz, answer the following questions why? a) The roloff factory-?3. bs the Ilary (NO2) mult-ampitude signaling necessary? b) IfM-ary (M>2) is necessary, determine the...
10 pts Question 3 A signal has a single-sided bandwidth of W - 90 kHz. If...
10 pts Question 3 A signal has a single-sided bandwidth of W - 90 kHz. If this signal is sampled at the Nyquist rate ( fs - 2W samples/sec) and PAM encoded what is the minimum required bandwidth needed for a channel to transmit this signal?
1. (a) A signal band-limited to 10 kt is sampled at Nyquist rate and i-law quantized...
1. (a) A signal band-limited to 10 kt is sampled at Nyquist rate and i-law quantized with ? 127. if this digital signal is to be transmitted with an SNR of at least 30 dB, determine the number of bits in the quantizer output. (b) What is the actual SNR observed at the quantizer output in part (a)7 (e) Determine the transmission bandwidth of the digital signal above.
KS31603 SULIT/CONFIDENTIAL QUESTION 4 (20 marks) (a) A message signal has a peak voltage of 1V...
KS31603 SULIT/CONFIDENTIAL QUESTION 4 (20 marks) (a) A message signal has a peak voltage of 1V and its average power is 125 mW. Design a PCM system (find minimum value of R of the R bit A/D) with uniform quantization to achieve at least a signal to quantization noise ratio of 36 dB. What is the signal to quantization noise ratio obtained in your design? [6 marks] (b) If the signal is sampled at 9kHz in 4(a), what is the...
2) An analog video signal with a bandwidth of 5 MHz. is sampled at one and half times the Nyquist rate. The signal is then quantized using a uniform quantizer. The resulting output is then sent over a channel with a bandwidth of 94 MHz. using binary PAM with a raised cosine pulse with a roll-off factor of α = 0.25 a) Find the maximum number of quantiozation levels possible (2 Marks) b) Find the resulting Signal-to-Quantization-Noise Ratio (make any...
Answer all parts and show all steps please.
3323 Modern Digital and Analog Communication Question A compact disc (CD) records audio signals digitally by using PCM. Assume that the audio signal bandwidth equals 15 kHz (a) If signal is sampled at the Nyquist rate and the samples are uniformly digitized into L 65,536 levels and then binary-coded, determine the number of bits required to encode a sample (b) If the audio signal has average power of 0.1 W and a...
A video signal has bandwidth of 4 MHz. This signal is sampled, quantized, and binary encoded using the PCM technique. The video signal amplitude is uniformly distributed in the range (-2, 2). If the signal is sampled at the Nyquist rate and quantized into 512 levels: (a) Determine the bit rate. (b) Determine the signal-to-quantization-noise ratio. (©) If the signal-to-quantization-noise ratio must be increased by a factor of 16, how you can achieve that? Will this affect the bit rate?...
Question 2 An analog signal with a power Pm-GW, and a bandwidth of 4kHz is sampled at a rate f, = 10ksamples/sec. (a) What value of A will lead to an SQNR of 55dB if uniform quantization is used? (b) If the peak voltage of m(t) is 8V, what value of L satisfies (a)? (c) How many bits per sample should be used? (d) What is the bit rate if we use the number of bits per sample from (c)?...
(5) A PCM system encodes samples using an 8-bit ADC. In the case of peak signal amplitude, estimate the signal to quantization noise ratio in dB (6) The output SQNR of a 10-bit PCM was found to be insufficient at 30 dB. To achieve the desired SQNR of 42 dB, an increase to the number of quantization levels was needed. Determine the fractional increase in the transmission bandwidth required. (7) A signal x(t) band-limited to 3kHz is sampled at a...
5.2-1 A compact dise (CD) records audio signals digitlly by using PCM. Let the au bandwidth be 15 kHz. (a) If the Nyquist samples are uniformly quantized into L 65,5 (b) If the audio signal has average power of 0.1 W and peak voltage of 1 V, find the resulting (c) Determine the number of binary digits per second (bit/s) required to encode the audico (d) For practical reasons discussed in the text, signals are sampled at a rate well...
4. There is an analog signal whose bandwidith is knowm as 25 kHz. The signal is sampled at a rate which is 15% higher than the Nyquist rate. The sampled data are unfomly quantized with the quantization error no larger than 0.1% of the peak magnitude of the spal. Given the avalable channel bandwidth being 100 kiz, answer the following questions why? a) The roloff factory-?3. bs the Ilary (NO2) mult-ampitude signaling necessary? b) IfM-ary (M>2) is necessary, determine the...
10 pts Question 3 A signal has a single-sided bandwidth of W - 90 kHz. If this signal is sampled at the Nyquist rate ( fs - 2W samples/sec) and PAM encoded what is the minimum required bandwidth needed for a channel to transmit this signal?
1. (a) A signal band-limited to 10 kt is sampled at Nyquist rate and i-law quantized with ? 127. if this digital signal is to be transmitted with an SNR of at least 30 dB, determine the number of bits in the quantizer output. (b) What is the actual SNR observed at the quantizer output in part (a)7 (e) Determine the transmission bandwidth of the digital signal above.
KS31603 SULIT/CONFIDENTIAL QUESTION 4 (20 marks) (a) A message signal has a peak voltage of 1V and its average power is 125 mW. Design a PCM system (find minimum value of R of the R bit A/D) with uniform quantization to achieve at least a signal to quantization noise ratio of 36 dB. What is the signal to quantization noise ratio obtained in your design? [6 marks] (b) If the signal is sampled at 9kHz in 4(a), what is the...
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