) Sketch the spectrum at point (a) and (b) of the receiver

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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part 1) Sketch the spectrum at point (a) and (b) of the receiver.
part 2) What must the bandwidth of the channel be required for the system?
part 3) Design a transmitter to multiplex the signal m1(t) and m2(t) for the receiver

Two signals, mi(1) and m₂(1) (both band-limited to 10,000 Hz) are to be transmitted simultaneously over a
channel using a custom frequency division multiplexing scheme. The multiplexing system is shown as below,
m₂ (t)
m₂ (t)
b
8-1
Channel
Transmitter
If the spectrums of the two signals are given as below:
1
IM₁(f)I
-10kHz
cos(80,000ft)
0
a
10kHz
cos(40,000ft)
1
A-A
IM₂(f)I
-10kHz
LPF
BW=10kHz
Receiver
0
LPF
BW=10kHz
10kHz
m₂ (t)
m₂ (t)
Transcribed Image Text:Two signals, mi(1) and m₂(1) (both band-limited to 10,000 Hz) are to be transmitted simultaneously over a channel using a custom frequency division multiplexing scheme. The multiplexing system is shown as below, m₂ (t) m₂ (t) b 8-1 Channel Transmitter If the spectrums of the two signals are given as below: 1 IM₁(f)I -10kHz cos(80,000ft) 0 a 10kHz cos(40,000ft) 1 A-A IM₂(f)I -10kHz LPF BW=10kHz Receiver 0 LPF BW=10kHz 10kHz m₂ (t) m₂ (t)
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