(Solved): 8. Show that an AM signal with large carrier can be demodulated by squaring it and then passing the ...
8. Show that an AM signal with large carrier can be demodulated by squaring it and then passing the resulting signal through a low-pass filter, as shown in Fig. 3-29. This type of detector is known as a square-law detector. Hint: Use the fact ?m(t)?A??1.