Problem 3: If the following pulse train represents a TDM signal for 4 messages that are sent as pulse amplitude modulation (PAM). If each message is band limited to and sampled at 50% above the Nyquist frequency.

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Problem 3:
If the following pulse train represents a TDM signal for 4 messages that are sent as pulse
amplitude modulation (PAM). If each message is band limited to and sampled at 50%
above the Nyquist frequency.
78 10 11 13 14
Time (msec)
a. What is the ratio of the system clock frequency to the message maximum
frequency
b. If these pulses are passed through a raised-cosine filter whose roll-off factor is
0.75. Determine the resulted signal bandwidth.
Transcribed Image Text:Problem 3: If the following pulse train represents a TDM signal for 4 messages that are sent as pulse amplitude modulation (PAM). If each message is band limited to and sampled at 50% above the Nyquist frequency. 78 10 11 13 14 Time (msec) a. What is the ratio of the system clock frequency to the message maximum frequency b. If these pulses are passed through a raised-cosine filter whose roll-off factor is 0.75. Determine the resulted signal bandwidth.
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