A signal xi(t) is band-limited to 4.5 kHz and the three other signals x2(t), x3(t), and x4(t) are band-limited to 1.5 kHz each. Assume these signals are transmitted by TDM. A. Set up a scheme TDM for realizing this multiplexing requirement with each signal sampled at the Nyquist rate. B. Identify the required speed of the commutator in samples/sec. C. Identify the minimum bandwidth requirement of the channel.

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A signal xi(t) is band-limited to 4.5 kHz and the three other signals x2(t),
x3(t), and x4(t) are band-limited to 1.5 kHz each. Assume these signals are
transmitted by TDM.
A. Set up a scheme TDM for realizing this multiplexing requirement with
each signal sampled at the Nyquist rate.
B. Identify the required speed of the commutator in samples/sec.
C. Identify the minimum bandwidth requirement of the channel.
Transcribed Image Text:A signal xi(t) is band-limited to 4.5 kHz and the three other signals x2(t), x3(t), and x4(t) are band-limited to 1.5 kHz each. Assume these signals are transmitted by TDM. A. Set up a scheme TDM for realizing this multiplexing requirement with each signal sampled at the Nyquist rate. B. Identify the required speed of the commutator in samples/sec. C. Identify the minimum bandwidth requirement of the channel.
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