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Transcript of FM Demodulation
Demodulation is the act of extracting the original information-bearing signal (modulating signal) from a modulated carrier wave.
what is communication ?
which are the main types of waves ?
very less noise in FM
There is less noise in FM.
During Demodulation process ,amplitude
Variations are added to wave according to frequency variations, and converted to message signal.
Slope detector, Foster Seeley discriminator, Ratio detector, Quadrature detector and Phase locked loop are different types of Fm demodulator.
Phase locked loop demodulator is highly used now -a-days.
what is Demodulation?
Separates Message signal from carrier
Boosts the message signal strength
why are we studying about demodulators ?
Of DISCRIMINATOR or DEMODULATOR
Two main types of waves are there
messages are send through waves
which is best wave ? why?
Ans : FM
Amplitude is affected in AM due to noise
Frequency is not affected in FM
AMPLITUDE changes wrt to message signal
FREQUENCY changes wrt to message signal
steps involved in successful communication
We have learned about FM Modulation
Let us see what is
IC's replaced Discriminators which work on the same principle