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Electronic Communication Systems 2nd Edition by Roy Blake
Edition 2ISBN: 978-0766826847Electronic Communication Systems 2nd Edition by Roy Blake
Edition 2ISBN: 978-0766826847 Exercise 28
An AM waveform can be described by the following equation. It appears across a 50 ohm resistor.
v ( t ) = [15 + 6 sin (6 × 10 3 t )] sin (200 × 10 6 t ) V
(a) What is the modulation index for this signal
(b) Sketch this signal in the frequency domain showing frequency and voltage scales.
(c) Find the total average power in this signal if it appears across a 50 ohm resistor.
v ( t ) = [15 + 6 sin (6 × 10 3 t )] sin (200 × 10 6 t ) V
(a) What is the modulation index for this signal
(b) Sketch this signal in the frequency domain showing frequency and voltage scales.
(c) Find the total average power in this signal if it appears across a 50 ohm resistor.
Explanation
Verified
Verified
(a)
The AM waveform is,
…… (1)
The gen...
Electronic Communication Systems 2nd Edition by Roy Blake
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