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Category > Business & Finance Posted 05 Nov 2017 My Price 4.00

The message signal

 The message signal m(t) = 2 cos 400t + 4 sin(500t + π/3 ) modulates the carrier signal c(t) = A cos(8000πt), using DSB amplitude modulation. Find the time domain and frequency domain representation of the modulated signal and plot the spectrum (Fourier transform) of the modulated signal. What is the power content of the modulated signal?

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SmartExpert
(118)
Status NEW Posted 05 Nov 2017 10:11 PM My Price 4.00

The----------- me-----------ssa-----------ge -----------sig-----------nal-----------

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file 1509920529-The message signal.docx preview (57 words )
T-----------he -----------mes-----------sag-----------e s-----------ign-----------al -----------m(t-----------) =----------- 2 -----------cos----------- 40-----------0t -----------+ 4----------- si-----------n(5-----------00t----------- + -----------Ï€/-----------3 )----------- mo-----------dul-----------ate-----------s t-----------he -----------car-----------rie-----------r s-----------ign-----------al -----------c(t-----------) =----------- A -----------cos-----------(80-----------00Ï-----------€t)-----------, u-----------sin-----------g D-----------SB -----------amp-----------lit-----------ude----------- mo-----------dul-----------ati-----------on.----------- Fi-----------nd -----------the----------- ti-----------me -----------dom-----------ain----------- an-----------d f-----------req-----------uen-----------cy -----------dom-----------ain----------- re-----------pre-----------sen-----------tat-----------ion----------- of----------- th-----------e m-----------odu-----------lat-----------ed -----------sig-----------nal----------- an-----------d p-----------lot----------- th-----------e s-----------pec-----------tru-----------m (-----------Fou-----------rie-----------r t-----------ran-----------sfo-----------rm)----------- of----------- th-----------e m-----------odu-----------lat-----------ed -----------sig-----------nal-----------. W-----------hat----------- is----------- th-----------e p-----------owe-----------r c-----------ont-----------ent----------- of----------- th-----------e m-----------odu-----------lat-----------ed -----------sig-----------nal-----------? -----------Ans-----------wer-----------: ----------- ----------- -----------
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