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Frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave. The technology is used in telecommunications, radio broadcasting, signal processing, and computing.
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
Though less intuitive than amplitude modulation, frequency modulation is still a fairly straightforward method of wireless data transmission. We are all at least vaguely familiar with frequency modulation—it’s the origin of the term “ FM radio.”
frequency component. Example Commercial FM signals use a peak frequency deviation of ∆f = 75 kHz and a maximum baseband message frequency of fm = 15 kHz. Carson’s rule estimates the FM signal bandwidth as BT = 2(75+15) = 180 kHz which is six times the 30 kHz bandwidth that would be required for AM modulation. 8-7
The encoding of information in a carrier wave by modifying the wave’s instantaneous frequency is known as frequency modulation (FM). FM technology is frequently used in the fields of computing, telecommunications, and signal processing.
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.
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.
Vibrato and glissando are frequency modulation. John Chowning tells me that he stumbled on FM when he sped up vibrato to the point that it was creating audible sidebands (perceived as a timbral change) rather than faster warbling (perceived as a frequency change). We can express this (the vibrato, not the neat story) as:
Frequency modulation is a form of analog angle modulation in which the baseband information-carrying signal, typically called the message or information signal m(t), varies the frequency of a carrier wave. Audio signals transmitted by FM radio communications are the most common.
Frequency modulation, commonly known as FM, is a fundamental concept in the world of telecommunications and broadcasting. It is a method of encoding information onto a carrier signal by varying its frequency.