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May 15, 2024 · Frequency Modulation or FM is a method of encoding information on one carrier wave by changing the wave carrier frequency. Learn more about frequency modulation, its application, advantages, disadvantages and more in this article
Frequency modulation can be classified as narrowband if the change in the carrier frequency is about the same as the signal frequency, or as wideband if the change in the carrier frequency is much higher (modulation index > 1) than the signal frequency.
Frequency modulation is a technique or a process of encoding information on a particular signal (analogue or digital) by varying the carrier wave frequency in accordance with the frequency of the modulating signal.
Frequency Modulation (FM) When the frequency of the carrier wave varies with the amplitude of the message signal, it is called frequency modulation. It is a type of angle modulation, a non-linear modulation process. The superimposition of the two waves does not work in FM.
Definition: A category of angle modulation in which the frequency of the carrier wave is changed according to the amplitude of the message signal is known as frequency modulation. It is abbreviated as FM and is a widely used analog modulation technique.
But we’re looking for frequency modulation, not phase modulation, so we want the excess frequency to be linearly proportional to the baseband signal. We know from the first page of this chapter that we can obtain frequency by taking the derivative, with respect to time, of phase.
Nov 10, 2022 · The process of modulation in which the frequency of the carrier signal is changed according to the instantaneous magnitude of the modulating signal is known as frequency modulation. Fig. 1: Frequency Modulation. The amplitude of the carrier wave is not disturbed and remains constant.
