Frequency Modulation Frequency modulation is a technique used in communication systems to modulate a carrier signal by varying the frequency of the carrier....
Frequency Modulation
Frequency modulation is a technique used in communication systems to modulate a carrier signal by varying the frequency of the carrier. This can be achieved by varying the amplitude or phase of the carrier signal.
How it works:
The carrier signal is a continuous wave with a constant frequency.
A modulator signal is a discrete signal that is superimposed on the carrier signal.
The frequency of the carrier signal is changed based on the properties of the modulator signal.
This allows the carrier signal to be transmitted over a wide range of frequencies, including those used by radio waves and television.
Examples:
Radio waves use frequency modulation to transmit speech and music.
Television uses frequency modulation to transmit pictures and sound.
Cellular phones use frequency modulation to transmit data between cell towers and mobile devices.
Benefits of Frequency Modulation:
Frequency modulation can be used to increase the bandwidth of a communication channel.
It can also be used to improve the quality of a transmitted signal by reducing interference from other sources.
Disadvantages of Frequency Modulation:
Frequency modulation can be difficult to implement, especially in real-time applications.
It can also be sensitive to interference from other sources