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(Solved): Given an AM modulator operates with the message signal m(t) m(t)=9cos(20\pi t)-8sin(80\pi t) The u ...
Given an AM modulator operates with the message signal m(t)
m(t)=9cos(20\pi t)-8sin(80\pi t)
The unmodulated carrier is given by 110cos(200\pi t)and the system operates with an modulation index of 0.8.(Assume that min(m(t))=-12.8985 m_(n)(t).
3.2. Determine the AM modulated signal x_(c)(t).
3.3 Determine the spectrum of the AM modulated signal x_(c)(j\omega ).
3.4 Sketch the spectrum of a message signal M(j\omega ) and the spectrum of the DSB modulated signal
x_(c)(j\omega ).
3.5 Determine the power of m_(n)(t) and the efficiency.
3.6 Determine the demodulated output y_(D)(t).
3.7 Determine and Sketch the spectrum of the demodulated output Y_(D)(j\omega ).
3.8 Determine the filtered demodulated output hat(m)(t)