narrow-band fm signal FM(t)= Ac[cos(2pi(Fc)(t))-Bsin(2pi(Fm)(t)sin(2pi(Fc)(t)]
where B=Beta
a. If the signal is passed through an envelope detector, determine the output of the envelope detector. Is demodulation satisfactory?
b.What is the ratio of the max to min value of the signal at the output of the envelope detector?
c.Determine the average power of the narrow-band FM signal, expressed as a percent of the average power of the un-modulated carrier.