carrier wave


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carrier wave:

see modulationmodulation,
in communications, process in which some characteristic of a wave (the carrier wave) is made to vary in accordance with an information-bearing signal wave (the modulating wave); demodulation is the process by which the original signal is recovered from the wave
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carrier wave

[′kar·ē·ər ‚wāv]
(chemistry)

carrier wave

The component of a modulated wave that is independent of the modulation. Generally referred to as a carrier.
References in periodicals archive ?
Currently, the mainstream commercial 40G/100G WDM systems use a single carrier wave.
Using NASA's Deep Space Network, Italian physicists Bruno Bertotti, Luciano Iess, and Paolo Tortora sent radio carrier waves to Cassini for many days and precisely measured the minute frequency shifts in the returned signal.
He defines carrier waves as clusters of "related innovations," arising from one important invention but which, through their commercial success, exert "a much larger" influence on society.
At present, each relay station handles a maximum of six i-mode-related carrier waves, allowing six people to access the service at once via the station.
The message could be encoded in carrier waves, modulated signals like those of AM or FM transmissions, or in pulses that would carry further given the same amount of energy.
Unfortunately, FM will work only for carrier waves of high frequency, and these cannot be transmitted much beyond the horizon.
Freescale's product significantly improved our overall base station efficiency by providing highly efficient DSP cores and accelerators, allowing us to provide the industry's highest number of TD-SCDMA carrier waves in a base station and increased system flexibility.
It optimizes the transport capacities of optical fiber and tremendously extends distances spanned by optical carrier waves.
The micro-base station is designed support 3 MIMO carrier waves, and has a powerful data processing capability of 84Mbps downlink and 11.
Unlike conventional wireless systems, which use narrowband modulated carrier waves to transmit information, Ultra-Wideband transmits over a wide swath of radio spectrum, using a series of very narrow and low-power pulses.
It permits digital signals to be sent out simultaneously on multiple radio frequency (RF) carrier waves, allowing non-line of sight operation.