Calculate the bit rate (or, more strictly, the binary digit rate) required to transmit a voice...
Calculate the bit rate (or, more strictly, the binary digit rate) required to transmit a voice signal as a linearly quantised PCM signal with a signal-to-quantisation-noise ratio of 40 dB. (Choose a realistic value in your calculation for the sampling rate and peak-to-mean ratio of a voice signal.) Calculate the minimum channel bandwidth required for the resulting PCM signal if inter-symbol interference is to be avoided.
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Calculate the bit rate (or, more strictly, the binary digit
rate) required to transmit a voice...
(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...
Please help me these questions of "Principles of Communications" subject. Thanks in advance! Problem 2: PCM syst...
Please help me these questions of "Principles of Communications"
subject. Thanks in advance!
Problem 2: PCM system (40 points)coo h Consider a polar binary PCM system with number of bits per sample v 8 and the 4 KHz. Assumed that the channel is AWGN. voice bandwidth a) Assumed that one voice signal is transmitted using above PCM system, find the bit rate at the output of PCM transmitter and the minimum channel bandwidth. b) Assumed that 24 voice signals are...
Assume that an analog audio voice-frequency (VF) telephone signal m(t) occupies a band from 300 Hz...
Assume that an analog audio voice-frequency (VF) telephone signal m(t) occupies a band from 300 Hz to 3000 Hz. The signal is to be converted to a PCM signal for transmission over a digital telephone system. The signal is sampled at a rate 33.3% higher than the Nyquist rate. The maximum acceptable quantizatiorn error is 2% of the peak amplitude of m(t). The quantized samples are binary coded. Find the minimum bandwidth B of a noiseless channel required to transmit...
Help!!! A information wave m(t) is transmitted using a 4-bit binary PCM system. A uniform quantizer...
Help!!!
A information wave m(t) is transmitted using a 4-bit binary PCM system. A uniform quantizer is used to convert the sampled signal into a PCM bit stream. Assume a sampling rate of 2 times the Nyquist rate m(t) .5 0.5 2.5 Time (s) Figure 1: Intelligence signal m(). Determine 1. Determine the quantized sample value and its respective PCM sequence for the following samples: 2Ts, 3Ts and 4Ts 2. What bandwidth would be required to transmit this PCM signal?...
2. a. Find Eb/No and Amplitude A required to give Pb 10-5 for the following coherent digital modu...
2. a. Find Eb/No and Amplitude A required to give Pb 10-5 for the following coherent digital modulation schemes if No-10-5 and time is 0.5msec i. On-Off keying (ASK), ii. BPSK, iii. BFSK and v. BPSK with a phase error of 5 deg. Consider an audio signal with spectral components limited to the frequency band 300 to 3300 Hz. Assume that the sampling rate of 8000 samples/s will be used to generate a PCM signal. The ratio of peak signal...
Question 03: IPLO021 ICLO 03] > C2 WEWNINA Marks: A human voice signal band limited to...
Question 03: IPLO021 ICLO 03] > C2 WEWNINA Marks: A human voice signal band limited to 4 kHz is to be transmitted digitally using binary pulses. The available transmi bandwidth is 96 kHz. a. Calculate the number of quantization levels required to convert the sampled signal values into PCM words. b. Calculate the peak signal power to peak quantization nolse power ratio for the quantizer. UUS Mark MOMECA form Whitenisa demod
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...
Consider an audio signal with spectral components limited to the frequency band 300 to 3300Hz. Assume...
Consider an audio signal with spectral components limited to the frequency band 300 to 3300Hz. Assume that a sampling rate of 8000 samples/sec will be used to generate a PCM signal. Assume that the ratio of peak signal power to average quantization noise power to average quantization noise power at the outputs needs to be 30dB What is the minimum number of uniform quantization levels needed, and what is the minimum number of bits per sample needed. Calculate the system...
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...
If I have a PCM encoded bit steam and a sample rate of 1 ms per sample, how would I calculate the data rate? Moreover, w...
If I have a PCM encoded bit steam and a sample rate of 1 ms per sample, how would I calculate the data rate? Moreover, what is the required S/N ratio in DB to transmit the signal over a 5 kHz medium?
(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...
Please help me these questions of "Principles of Communications"
subject. Thanks in advance!
Problem 2: PCM system (40 points)coo h Consider a polar binary PCM system with number of bits per sample v 8 and the 4 KHz. Assumed that the channel is AWGN. voice bandwidth a) Assumed that one voice signal is transmitted using above PCM system, find the bit rate at the output of PCM transmitter and the minimum channel bandwidth. b) Assumed that 24 voice signals are...
Assume that an analog audio voice-frequency (VF) telephone signal m(t) occupies a band from 300 Hz to 3000 Hz. The signal is to be converted to a PCM signal for transmission over a digital telephone system. The signal is sampled at a rate 33.3% higher than the Nyquist rate. The maximum acceptable quantizatiorn error is 2% of the peak amplitude of m(t). The quantized samples are binary coded. Find the minimum bandwidth B of a noiseless channel required to transmit...
Help!!!
A information wave m(t) is transmitted using a 4-bit binary PCM system. A uniform quantizer is used to convert the sampled signal into a PCM bit stream. Assume a sampling rate of 2 times the Nyquist rate m(t) .5 0.5 2.5 Time (s) Figure 1: Intelligence signal m(). Determine 1. Determine the quantized sample value and its respective PCM sequence for the following samples: 2Ts, 3Ts and 4Ts 2. What bandwidth would be required to transmit this PCM signal?...
2. a. Find Eb/No and Amplitude A required to give Pb 10-5 for the following coherent digital modulation schemes if No-10-5 and time is 0.5msec i. On-Off keying (ASK), ii. BPSK, iii. BFSK and v. BPSK with a phase error of 5 deg. Consider an audio signal with spectral components limited to the frequency band 300 to 3300 Hz. Assume that the sampling rate of 8000 samples/s will be used to generate a PCM signal. The ratio of peak signal...
Question 03: IPLO021 ICLO 03] > C2 WEWNINA Marks: A human voice signal band limited to 4 kHz is to be transmitted digitally using binary pulses. The available transmi bandwidth is 96 kHz. a. Calculate the number of quantization levels required to convert the sampled signal values into PCM words. b. Calculate the peak signal power to peak quantization nolse power ratio for the quantizer. UUS Mark MOMECA form Whitenisa demod
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...
Consider an audio signal with spectral components limited to the frequency band 300 to 3300Hz. Assume that a sampling rate of 8000 samples/sec will be used to generate a PCM signal. Assume that the ratio of peak signal power to average quantization noise power to average quantization noise power at the outputs needs to be 30dB What is the minimum number of uniform quantization levels needed, and what is the minimum number of bits per sample needed. Calculate the system...
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...
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