Homework Answers
Add Answer to:
2. In a digital transmission system is required that the quantization noise does not exceed +/-2%...
a. Describe TWO (2) advantages and TWO (2) disadvantages of digital transmission. (CO1: PO1 - 4...
a. Describe TWO (2) advantages and TWO (2) disadvantages of digital transmission. (CO1: PO1 - 4 marks) b. Sampling, quantization and coding are the three processes used to represent an analog signal in digital form. Considering an input signal into an 8-bit Pulse Code Modulation (PCM) system is a 20 Vp-p 50-Hz, answer the followings: i. Using appropriate diagram briefly describe TWO (2) basic methods to perform the sampling function. (CO2: PO2 - 2 marks) Determine the number of quantization...
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 3 (25 MARKS) Describe TWO (2) advantages and TWO (2) disadvantages of digital transmission (C01:...
QUESTION 3 (25 MARKS) Describe TWO (2) advantages and TWO (2) disadvantages of digital transmission (C01: P01 - 4 marks) b Sampling, quantization and coding are the three processes used to represent an analog signal in digital form. Considering an input signal into an 8-bit Pulse Code Modulation (PCM) system is a 20 Vpp 50-Hz, answer the followings: i. Using appropriate diagram briefly describe TWO (2) basic methods to perform the sampling function. (CO2: PO2 - 2 marks) Determine the...
Please show all work and explain all concepts and formulas used. 2. (15pt) In the compact...
Please show all work and explain all concepts and formulas
used.
2. (15pt) In the compact disc (CD) digital audio system, an analog signal is digitized with a sampling rate of 44.1 kilosamples/s. (a) How many quantization levels of the analog signal are needed to achieve the peak signal- to-quantization-noise ratio at least at 92 dB? (b) How many bits per sample are needed for the number of levels found in part (a)? (c) What is the required data rate...
What is quantization in analog to digital conversion? 1. How does quantization step size affect the code width of a signal? 2. What is quantization in analog to digital conversion? 1. How does q...
What is quantization in analog to digital conversion? 1. How does quantization step size affect the code width of a signal? 2.
What is quantization in analog to digital conversion? 1. How does quantization step size affect the code width of a signal? 2.
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...
(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...
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...
Discuss uniform and non- uniform quantization with proper example and diagram. Q6 (a) (5 marks) (b)...
Discuss uniform and non- uniform quantization with proper example and diagram. Q6 (a) (5 marks) (b) As a telecommunication engineer, you are assigned to design a Pulse Code Modulation (PCM) signal for a telephone system. Assume that an analog audio voice frequency signal occupies a band from 300-3400 Hz. The signal is to be converted to a PCM signal for transmission over a digital telephone system. Each sample is represented by 8 bits. Determine: the bandwidth using a sinc function;...
b) A digital cellular telephone system is required to work at a bandwidth efficiency of 5 bits/second/Hz in order to ac...
b) A digital cellular telephone system is required to work at a bandwidth efficiency of 5 bits/second/Hz in order to accommodate sufficient users to make it profitable. What is the minimum signal to noise ratio per bit (E,/No) that must be (4) planned for in order to ensure that users on the edge of the coverage area receive error-free communication? If we wish to maintain the bandwidth efficiency and double the data rate in the system, what would be the...
a. Describe TWO (2) advantages and TWO (2) disadvantages of digital transmission. (CO1: PO1 - 4 marks) b. Sampling, quantization and coding are the three processes used to represent an analog signal in digital form. Considering an input signal into an 8-bit Pulse Code Modulation (PCM) system is a 20 Vp-p 50-Hz, answer the followings: i. Using appropriate diagram briefly describe TWO (2) basic methods to perform the sampling function. (CO2: PO2 - 2 marks) Determine the number of quantization...
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 3 (25 MARKS) Describe TWO (2) advantages and TWO (2) disadvantages of digital transmission (C01: P01 - 4 marks) b Sampling, quantization and coding are the three processes used to represent an analog signal in digital form. Considering an input signal into an 8-bit Pulse Code Modulation (PCM) system is a 20 Vpp 50-Hz, answer the followings: i. Using appropriate diagram briefly describe TWO (2) basic methods to perform the sampling function. (CO2: PO2 - 2 marks) Determine the...
Please show all work and explain all concepts and formulas
used.
2. (15pt) In the compact disc (CD) digital audio system, an analog signal is digitized with a sampling rate of 44.1 kilosamples/s. (a) How many quantization levels of the analog signal are needed to achieve the peak signal- to-quantization-noise ratio at least at 92 dB? (b) How many bits per sample are needed for the number of levels found in part (a)? (c) What is the required data rate...
What is quantization in analog to digital conversion? 1. How does quantization step size affect the code width of a signal? 2.
What is quantization in analog to digital conversion? 1. How does quantization step size affect the code width of a signal? 2.
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...
(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...
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...
Discuss uniform and non- uniform quantization with proper example and diagram. Q6 (a) (5 marks) (b) As a telecommunication engineer, you are assigned to design a Pulse Code Modulation (PCM) signal for a telephone system. Assume that an analog audio voice frequency signal occupies a band from 300-3400 Hz. The signal is to be converted to a PCM signal for transmission over a digital telephone system. Each sample is represented by 8 bits. Determine: the bandwidth using a sinc function;...
b) A digital cellular telephone system is required to work at a bandwidth efficiency of 5 bits/second/Hz in order to accommodate sufficient users to make it profitable. What is the minimum signal to noise ratio per bit (E,/No) that must be (4) planned for in order to ensure that users on the edge of the coverage area receive error-free communication? If we wish to maintain the bandwidth efficiency and double the data rate in the system, what would be the...
Most questions answered within 3 hours.
-
C - Language
Write a loop that sets each array element to the sum of itself...
asked 10 minutes ago -
(63
#14)
which of the following statments best describes how chamging
the concentration of the substances...
asked 3 hours ago -
In the following reaction, which element is undergoing
oxidation: Na2SO3 + N2O --> N2 + Na2SO4...
asked 4 hours ago -
Which of the following pairs of ions have the same electron
configuration?
I: Br− and Se2−...
asked 7 hours ago -
The Foremost Composite Materials Company is planning a two-day
sales conference for October 19-20. The conference...
asked 7 hours ago -
3) Illustrate the observed pattern of relatedness of organisms
versus adaptations to specific conditions. This means...
asked 7 hours ago -
In winter a lake has a 0.35 m thick ice layer over 1.10 m of
water....
asked 8 hours ago -
Assuming the following has been encrypted with a Vigenere cipher
below, use the method(s) and assumptions...
asked 9 hours ago -
How would I use switch statements to write a program that will
take an input of...
asked 8 hours ago -
Imagine a reaction in which methane gas combusts at a constant
pressure of 1 atm and...
asked 9 hours ago -
Two parallel wires (each 12 m in length) are separated by a
distance of 0.065 m...
asked 9 hours ago -
Suppose there were three masses at the corner of uniform
equilateral triangle. The masses are m1...
asked 9 hours ago