Science Fair Project Encyclopedia
Demodulation
Demodulation is the act of removing the modulation from an analog signal.
To demodulate an AM signal, pass it through a dioderectifier. The amplitude variation will integrate into the original modulating signal.
There are several ways to demodulate an FM signal. One is to use two AM demodulators, one tuned to the high end of the band and the other to the low end, and feed the outputs into a difference amp. Another is to feed the signal into a phase-locked loop and use the error signal as the demodulated signal.
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details