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ANGLE MODULATION
TRANSMISSION
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- Modulating signal
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FM PM
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Phase and Frequency Modulators and Demodulators
Phase Modulator circuit that aries the carrier in such a !a" that its instantan#hase is #ro#ortional to the $odulating signal
rest %re&uenc" un$odulated carrier !ith a single %re&uenc"
're&uenc" $odulator or %re&uenc" deiator- circuit that aries the carrier in such a !a" that its instantaneous %re& is
#ro#ortional to the integral o% the $odulating signal
d(dt'M
$odulator
Phase $odulator'M
de$odulator
Phase de$odulator
'M Modulator
PM$odulator
PMde$odulat
or
'M de$odulator
d(dt
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carrier null alue o% $ !hen the ) is *ero
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