Frequency modulation (FM) was invented and commercialized after amplitude modulation. Its main advantage is that it is more resistant to additive noise than AM. In addition to commercial radio, it is used as a component of television signals, for satellite and microwave communications, and for digital data transmission. In this chapter the basic theory of FM modulation and demodulation will be presented and you will implement two types of demodulators, the frequency discriminator and the phase-locked loop.


Carrier Frequency Instantaneous Frequency Voltage Control Oscillator Loop Bandwidth Frequency Modulation Signal 
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© Springer Science+Business Media, LLC 2008

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