Question 3 a. A communication system transmits an analog waveform via a Yagi antenna of length...

 

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Question 3 a. A communication system transmits an analog waveform via a Yagi antenna of length 3m. The analog wave form is carrier modulated and transmitted over an Maray PAM system, where the number of pulse level is M = 64. The quantization distortion must not exceed ± 2% of the peak-to-peak analog signal. i. What is the maximum number of bits per sample that should be used in this PCM? ii. What is the minimum sampling rate? iii. Determine the maximum frequency iv. What's the resulting bit transmission rate? v. Compute the sampling time [10 marks] 3 b. The bandwidth of a video signal is 4.5 MHz This signal is to be transmitted using Pulse Code Modulation with the number of quantization levels Q-1024. The sampling rate should be a certain percentage higher than the Nyquist rate. How best would you analyze the system bit rate to enable transmission of the video signal? Choose your own percentage raging between 20% and 50%. [8 marks] c. In digital communication it is said that Analog information sources can be transformed into digital sources through what is described as what. In one page discuss the method and process. [5 marks] 3 Question 3 a. A communication system transmits an analog waveform via a Yagi antenna of length 3m. The analog wave form is carrier modulated and transmitted over an Maray PAM system, where the number of pulse level is M = 64. The quantization distortion must not exceed ± 2% of the peak-to-peak analog signal. i. What is the maximum number of bits per sample that should be used in this PCM? ii. What is the minimum sampling rate? iii. Determine the maximum frequency iv. What's the resulting bit transmission rate? v. Compute the sampling time [10 marks] 3 b. The bandwidth of a video signal is 4.5 MHz This signal is to be transmitted using Pulse Code Modulation with the number of quantization levels Q-1024. The sampling rate should be a certain percentage higher than the Nyquist rate. How best would you analyze the system bit rate to enable transmission of the video signal? Choose your own percentage raging between 20% and 50%. [8 marks] c. In digital communication it is said that Analog information sources can be transformed into digital sources through what is described as what. In one page discuss the method and process. [5 marks] 3

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ANSWER 3a i The maximum number of bits per sample that should be used in this PCM is 10 ii The minimum sampling rate is 8000 samples per second iii The maximum frequency is 4000 Hz iv The resulting bi... View the full answer