A TV station transmitting a message signal m(t) = (3 + the last digit of your ID) cos (2n(10 + the last digit of your ID)t) + 2, where the carrier signal is c(t) = (4 + the last digit of your ID) cos (2n(50 + the last digit of your ID) t). The modulated signal is demodulated by applying it to a %D %3D synchronous detector. i) If the local carrier frequency of the detector is having a frequency error 3Hz, measure the demodulated DSB-FC signal.
A TV station transmitting a message signal m(t) = (3 + the last digit of your ID) cos (2n(10 + the last digit of your ID)t) + 2, where the carrier signal is c(t) = (4 + the last digit of your ID) cos (2n(50 + the last digit of your ID) t). The modulated signal is demodulated by applying it to a %D %3D synchronous detector. i) If the local carrier frequency of the detector is having a frequency error 3Hz, measure the demodulated DSB-FC signal.
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Last digit of my id is 9
Please provide answer of all parts
Transcribed Image Text:2.
A TV station transmitting a message signal m(t) = (3 +
the last digit of your ID) cos (2n(10 + the last digit of your ID)t) + 2, where the
carrier signal is c(t) = (4 + the last digit of your ID) cos (2n(50 +
the last digit of your ID) t). The modulated signal is demodulated by applying it to a
synchronous detector.
i) If the local carrier frequency of the detector is having a frequency error 3Hz, measure
the demodulated DSB-FC signal.
ii) Determine the total power of the modulated signal.
iii) Determine the modulation index and the bandwidth of DSB-FC.
No
iv) If the white noise of zero mean and power spectral density
is added with the
2
modulated signal at the envelope detector input then find an expression for the input
signal to noise ratio and the output signal to noise ratio.
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