What is carrier wave?

  • (noun): A radio wave that can be modulated in order to transmit a signal.
    Synonyms: carrier

Carrier Wave

In telecommunications, a carrier wave or carrier is a waveform (usually sinusoidal) that is modulated (modified) with an input signal for the purpose of conveying information. This carrier wave is usually a much higher frequency than the input signal. The purpose of the carrier is usually either to transmit the information through space as an electromagnetic wave (as in radio communication), or to allow several carriers at different frequencies to share a common physical transmission medium by frequency division multiplexing (as, for example, a cable television system).

Read more about Carrier Wave.

Some articles on carrier wave:

Amplitude-shift Keying
... digital data as variations in the amplitude of a carrier wave ... Frequency and phase of the carrier are kept constant ... form of ASK operates as a switch, using the presence of a carrier wave to indicate a binary one and its absence to indicate a binary zero ...
Index Of Physics Articles - C
... action Capillary length Capillary number Capillary pressure Capillary surface Capillary wave Capture orbit Carbon-13 NMR Carbon-burning process Carbon (journal ... Van Vliet Carreau fluid Carrier-to-noise ratio Carrier-to-receiver noise density Carrier generation and recombination Carroll's paradox Carroll Alley Cartan formalism (physics ... Cluster (physics) Cluster decay Cluster decomposition theorem Clyde Cowan Clyde Wiegand Cnoidal wave Coandă effect Coaxial rotors Cobra probe Cockcroft Institute ...
Transmitter - How It Works
... current can radiate off a conductor (the antenna) as electromagnetic waves (radio waves) ... or video signal, onto the radio frequency current to be carried by the radio waves ... they strike the antenna of a radio receiver, the waves excite similar (but less powerful) radio frequency currents in it ...
Carrier Wave - Carrier Leakage
... Carrier leakage is interference caused by cross-talk or a DC offset ... It is present as an unmodulated sine wave within the signal's bandwidth, whose amplitude is independent of the signal's amplitude ... See frequency mixers, to read further about carrier leakage or local oscillator feedthrough ...

Famous quotes containing the words wave and/or carrier:

    Great Powers of falling wave and wind and windy fire,
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    William Butler Yeats (1865–1939)

    The problems of society will also be the problems of the predominant language of that society. It is the carrier of its perceptions, its attitudes, and its goals, for through it, the speakers absorb entrenched attitudes. The guilt of English then must be recognized and appreciated before its continued use can be advocated.
    Njabulo Ndebele (b. 1948)