In the figure below the carrier signal Ac cos(@ct) has an amplitude of 20 volts and the diode turn-on voltage is 0.7 volt (assume this to be small compared to 20 volts). The message signal has a DC component and is given by m(t) - 2, where 2 is a constant. In addition, the message signal bandwidth is B Hz, and we >> 2nB. Derive an expression for y(t), the output signal of the AM modulator. ip A, cos m1 R BPF x(1) Centered y(1) at o a+ m(1)
In the figure below the carrier signal Ac cos(@ct) has an amplitude of 20 volts and the diode turn-on voltage is 0.7 volt (assume this to be small compared to 20 volts). The message signal has a DC component and is given by m(t) - 2, where 2 is a constant. In addition, the message signal bandwidth is B Hz, and we >> 2nB. Derive an expression for y(t), the output signal of the AM modulator. ip A, cos m1 R BPF x(1) Centered y(1) at o a+ m(1)
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Transcribed Image Text:Problem 3
In the figure below the carrier signal
Ac-cos(@.t) has an amplitude of 20 volts and the diode turn-on voltage is
0.7 volt (assume this to be small compared to 20 volts). The message
signal has a DC component and is given by m(t) - 2, where 2 is a constant.
In addition, the message signal bandwidth is B Hz, and we >> 2nB. Derive
an expression for y(t), the output signal of the AM modulator.
ip
A cos m1
R
BPF
x(1)
Centered
y(1)
at o.
a+ m(t)
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