A basic modulator circuit is shown in Figure Q2(a). Modulation is multiplication between data signal, m(t) and a carrier signal, c(t). The process yields a new signal, v(t). (a) (i) Analyze the Fourier Transform of the signal v(t) by using modulation properties. (ii) Sketch the spectrum of signal v(t).

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m(t) = 1
v(t)
%3D
c(t) = cos w̟t
Figure Q2(a)
R
Figure Q2(b)
Transcribed Image Text:m(t) = 1 v(t) %3D c(t) = cos w̟t Figure Q2(a) R Figure Q2(b)
A basic modulator circuit is shown in Figure Q2(a). Modulation is multiplication
between data signal, m(t) and a carrier signal, c(t). The process yields a new signal,
v(t).
Q2
(a)
(i)
Analyze the Fourier Transform of the signal v(t) by using modulation
properties.
(ii)
Sketch the spectrum of signal v(t).
The voltage across a 4 N resistor of an RC circuit in Figure Q2(b) is given by
VR(t) = 2e-6u(t)V. Determine the total energy dissipated by this resistor using
Parseval's Theorem.
(b)
Transcribed Image Text:A basic modulator circuit is shown in Figure Q2(a). Modulation is multiplication between data signal, m(t) and a carrier signal, c(t). The process yields a new signal, v(t). Q2 (a) (i) Analyze the Fourier Transform of the signal v(t) by using modulation properties. (ii) Sketch the spectrum of signal v(t). The voltage across a 4 N resistor of an RC circuit in Figure Q2(b) is given by VR(t) = 2e-6u(t)V. Determine the total energy dissipated by this resistor using Parseval's Theorem. (b)
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