A single sidban AM signal is given by PSSB (t) = 1000 sinc(1000) cos(11000 -* -t)...

 

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A single sidban AM signal is given by PSSB (t) = 1000 sinc(1000) cos(11000 -* -t) The carrier signal is c(t) = cos(10000-m-t). a) (10 points) Sketch the magnitude spectrum of the modulated signal essa(t). b) (5 points) Does the modulated signal ossa (t) represent USB or LSB? Why? c) (5 points) Determine the message signal m(t). Hint: To do so, apply the coherent demod- ulation as shown in the figure. Sketch the magnitude spectrum of the signal at the Point A then apply the LPF on the sketch. Pssa(t) 2 cos(wet) Point A LPF co(t) A single sidban AM signal is given by PSSB (t) = 1000 sinc(1000) cos(11000 -* -t) The carrier signal is c(t) = cos(10000-m-t). a) (10 points) Sketch the magnitude spectrum of the modulated signal essa(t). b) (5 points) Does the modulated signal ossa (t) represent USB or LSB? Why? c) (5 points) Determine the message signal m(t). Hint: To do so, apply the coherent demod- ulation as shown in the figure. Sketch the magnitude spectrum of the signal at the Point A then apply the LPF on the sketch. Pssa(t) 2 cos(wet) Point A LPF co(t)