Question

1) Assume that string of bits 1010... is the data that needs to be send from computer X to computer y in a LAN. The transmitted signal (signal leaving computer X) for this data is represented in the figure below. Assume a periodic signal. Identify the fundamental frequency of this signal, and the frequency values for the first seven harmonics that are actually present in the signal Amplitu Answers a) Fundamental Frequency b) Harmonics 2 3 4 t (msec 10-3 2) Assuming that the signal that arrives at the computer Y (of previous problem) looks like the signal in Fig.2. Estimate what is the bandwidth of the transmission medium for this communication system. Assume that the signal arriving in computer Y is free of bit error rate (BER) Li Time ig 2-Signal that arrives at the destination, computer Y, with up to the 13th harmanie.

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Answer 1

nod is O 3 sec and ath tepnr, fundarenhj fundasnentay The time period is 1o sec and so fre lo3 H or 1 kHz hrequnc of the firt sewen harmonids are H2, 6000H2 e 7000 Hz and 8oo Ha 2oDD H2, 3000 H2, 4000 Hz, 5000 14000 Hz or 4kH2 So the tranómisine mad un öheds be abe to traneml frequnas