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Simulate the transmission of four modulated signals over a single line using FDM (Frequency-division multiplexing)

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asdrubalini/signal_transport

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Signals

1. 20 kHz Sine wave modulated with FM

fm = 20 kHz
fc = 110 kHz
df = 75 kHz
B = 2 * (fm + df) = 190 kHz
f_max = fc + df = 185 kHz
f_min = fc - df = 35 kHz

2. 20 kHz Square wave modulated with FSK

fm = 20 kHz
fc = 275 kHz
df = 75 kHz
f1 = fc + df = 
f2 = fc - df = 
B = 2 * df + 2 * fm = 190 kHz
f_max = fc + df = 200 kHz
f_min = fc - df = 350 kHz

3. 20 kHz Sawtooth wave modulated with AM

fm = 20 kHz
fc = 385 kHz
B = 2 * fm = 40 kHz
f_max = fc + fm = 405 kHz
f_min = fc - fm = 365 kHz

4. 20 kHz Square wave OOK

fm = 20 kHz
fc = 480 kHz
B = 6 * fm = 120 kHz
f_max = fc + fm = 540 kHz
f_min = fc - fm = 420 kHz

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Simulate the transmission of four modulated signals over a single line using FDM (Frequency-division multiplexing)

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