Carrier wave, the Glossary
In telecommunications, a carrier wave, carrier signal, or just carrier, is a periodic waveform (usually sinusoidal) that carries no information that has one or more of its properties modified (the called modulation) by an information-bearing signal (called the message signal or modulation signal) for the purpose of conveying information.[1]
Table of Contents
46 relations: Alternating current, Amplitude modulation, Band-pass filter, Bandwidth (signal processing), Beat frequency oscillator, Cable television, Carrier recovery, Carrier system, Coaxial cable, Communication channel, Crosstalk, Demodulation, Digital radio, Digital television, Electromagnetic radiation, Electronic oscillator, Emission spectrum, Federal Standard 1037C, Frequency, Frequency mixer, Frequency modulation, Frequency-division multiplexing, LC circuit, MIL-STD-188, Modulation, NO CARRIER, Optical fiber, Orthogonal frequency-division multiplexing, Radio, Radio frequency, Radio receiver, Radio wave, Record producer, Sideband, Signal, Sine wave, Single-sideband modulation, Spectrum, Spread spectrum, Telecommunications, Transmitter, Ultra-wideband, University of Texas at Austin, Waveform, Wavelength-division multiplexing, Wi-Fi.
- Waveforms
Alternating current
Alternating current (AC) is an electric current that periodically reverses direction and changes its magnitude continuously with time, in contrast to direct current (DC), which flows only in one direction.
See Carrier wave and Alternating current
Amplitude modulation
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave.
See Carrier wave and Amplitude modulation
Band-pass filter
A band-pass filter or bandpass filter (BPF) is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.
See Carrier wave and Band-pass filter
Bandwidth (signal processing)
Bandwidth is the difference between the upper and lower frequencies in a continuous band of frequencies.
See Carrier wave and Bandwidth (signal processing)
Beat frequency oscillator
In a radio receiver, a beat frequency oscillator or BFO is a dedicated oscillator used to create an audio frequency signal from Morse code radiotelegraphy (CW) transmissions to make them audible. Carrier wave and beat frequency oscillator are communication circuits.
See Carrier wave and Beat frequency oscillator
Cable television
Cable television is a system of delivering television programming to consumers via radio frequency (RF) signals transmitted through coaxial cables, or in more recent systems, light pulses through fibre-optic cables.
See Carrier wave and Cable television
Carrier recovery
A carrier recovery system is a circuit used to estimate and compensate for frequency and phase differences between a received signal's carrier wave and the receiver's local oscillator for the purpose of coherent demodulation. Carrier wave and carrier recovery are communication circuits.
See Carrier wave and Carrier recovery
Carrier system
A carrier system is a telecommunications system that transmits information, such as the voice signals of a telephone call and the video signals of television, by modulation of one or multiple carrier signals above the principal voice frequency or data rate.
See Carrier wave and Carrier system
Coaxial cable
Coaxial cable, or coax (pronounced), is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric (insulating material); many coaxial cables also have a protective outer sheath or jacket.
See Carrier wave and Coaxial cable
Communication channel
A communication channel refers either to a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio channel in telecommunications and computer networking.
See Carrier wave and Communication channel
Crosstalk
In electronics, crosstalk is a phenomenon by which a signal transmitted on one circuit or channel of a transmission system creates an undesired effect in another circuit or channel.
See Carrier wave and Crosstalk
Demodulation
Demodulation is extracting the original information-bearing signal from a carrier wave. Carrier wave and Demodulation are communication circuits.
See Carrier wave and Demodulation
Digital radio
Digital radio is the use of digital technology to transmit or receive across the radio spectrum.
See Carrier wave and Digital radio
Digital television
Digital television (DTV) is the transmission of television signals using digital encoding, in contrast to the earlier analog television technology which used analog signals.
See Carrier wave and Digital television
Electromagnetic radiation
In physics, electromagnetic radiation (EMR) consists of waves of the electromagnetic (EM) field, which propagate through space and carry momentum and electromagnetic radiant energy.
See Carrier wave and Electromagnetic radiation
Electronic oscillator
An electronic oscillator is an electronic circuit that produces a periodic, oscillating or alternating current (AC) signal, usually a sine wave, square wave or a triangle wave, powered by a direct current (DC) source.
See Carrier wave and Electronic oscillator
Emission spectrum
The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to electrons making a transition from a high energy state to a lower energy state.
See Carrier wave and Emission spectrum
Federal Standard 1037C
Federal Standard 1037C, titled Telecommunications: Glossary of Telecommunication Terms, is a United States Federal Standard issued by the General Services Administration pursuant to the Federal Property and Administrative Services Act of 1949, as amended.
See Carrier wave and Federal Standard 1037C
Frequency
Frequency (symbol f), most often measured in hertz (symbol: Hz), is the number of occurrences of a repeating event per unit of time.
See Carrier wave and Frequency
Frequency mixer
In electronics, a mixer, or frequency mixer, is an electrical circuit that creates new frequencies from two signals applied to it. Carrier wave and frequency mixer are communication circuits.
See Carrier wave and Frequency mixer
Frequency modulation
Frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave.
See Carrier wave and Frequency modulation
Frequency-division multiplexing
In telecommunications, frequency-division multiplexing (FDM) is a technique by which the total bandwidth available in a communication medium is divided into a series of non-overlapping frequency bands, each of which is used to carry a separate signal.
See Carrier wave and Frequency-division multiplexing
LC circuit
An LC circuit, also called a resonant circuit, tank circuit, or tuned circuit, is an electric circuit consisting of an inductor, represented by the letter L, and a capacitor, represented by the letter C, connected together.
See Carrier wave and LC circuit
MIL-STD-188
MIL-STD-188 is a series of U.S. military standards relating to telecommunications.
See Carrier wave and MIL-STD-188
Modulation
In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a separate signal called the modulation signal that typically contains information to be transmitted.
See Carrier wave and Modulation
NO CARRIER
NO CARRIER (capitalized) is a text message transmitted from a modem to its attached device (typically a computer), indicating the modem is not (or no longer) connected to a remote system.
See Carrier wave and NO CARRIER
Optical fiber
An optical fiber, or optical fibre, is a flexible glass or plastic fiber that can transmit light from one end to the other.
See Carrier wave and Optical fiber
Orthogonal frequency-division multiplexing
In telecommunications, orthogonal frequency-division multiplexing (OFDM) is a type of digital transmission used in digital modulation for encoding digital (binary) data on multiple carrier frequencies.
See Carrier wave and Orthogonal frequency-division multiplexing
Radio
Radio is the technology of communicating using radio waves.
Radio frequency
Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around to around.
See Carrier wave and Radio frequency
Radio receiver
In radio communications, a radio receiver, also known as a receiver, a wireless, or simply a radio, is an electronic device that receives radio waves and converts the information carried by them to a usable form.
See Carrier wave and Radio receiver
Radio wave
Radio waves are a type of electromagnetic radiation with the lowest frequencies and the longest wavelengths in the electromagnetic spectrum, typically with frequencies below 300 gigahertz (GHz) and wavelengths greater than, about the diameter of a grain of rice.
See Carrier wave and Radio wave
Record producer
A record producer or music producer is a music creating project's overall supervisor whose responsibilities can involve a range of creative and technical leadership roles.
See Carrier wave and Record producer
Sideband
In radio communications, a sideband is a band of frequencies higher than or lower than the carrier frequency, that are the result of the modulation process.
Signal
Signal refers to both the process and the result of transmission of data over some media accomplished by embedding some variation.
Sine wave
A sine wave, sinusoidal wave, or sinusoid (symbol: ∿) is a periodic wave whose waveform (shape) is the trigonometric sine function. Carrier wave and sine wave are waveforms.
See Carrier wave and Sine wave
Single-sideband modulation
In radio communications, single-sideband modulation (SSB) or single-sideband suppressed-carrier modulation (SSB-SC) is a type of modulation used to transmit information, such as an audio signal, by radio waves.
See Carrier wave and Single-sideband modulation
Spectrum
A spectrum (spectra or spectrums) is a condition that is not limited to a specific set of values but can vary, without gaps, across a continuum.
Spread spectrum
In telecommunication, especially radio communication, spread spectrum are techniques by which a signal (e.g., an electrical, electromagnetic, or acoustic) generated with a particular bandwidth is deliberately spread in the frequency domain over a wider frequency band.
See Carrier wave and Spread spectrum
Telecommunications
Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information with an immediacy comparable to face-to-face communication.
See Carrier wave and Telecommunications
Transmitter
In electronics and telecommunications, a radio transmitter or just transmitter (often abbreviated as XMTR or TX in technical documents) is an electronic device which produces radio waves with an antenna with the purpose of signal transmission up to a radio receiver.
See Carrier wave and Transmitter
Ultra-wideband
Ultra-wideband (UWB, ultra wideband, ultra-wide band and ultraband) is a radio technology that can use a very low energy level for short-range, high-bandwidth communications over a large portion of the radio spectrum.
See Carrier wave and Ultra-wideband
University of Texas at Austin
The University of Texas at Austin (UT Austin, UT, or Texas) is a public research university in Austin, Texas.
See Carrier wave and University of Texas at Austin
Waveform
In electronics, acoustics, and related fields, the waveform of a signal is the shape of its graph as a function of time, independent of its time and magnitude scales and of any displacement in time. Carrier wave and waveform are waveforms.
Wavelength-division multiplexing
In fiber-optic communications, wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths (i.e., colors) of laser light.
See Carrier wave and Wavelength-division multiplexing
Wi-Fi
Wi-Fi is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves.
See also
Waveforms
- Biorhythm (pseudoscience)
- Carrier wave
- Constant envelope
- Continuous wave
- Crest factor
- Sawtooth wave
- Sine wave
- Square wave
- Triangle wave
- Waveform
References
[1] https://en.wikipedia.org/wiki/Carrier_wave
Also known as Carrier (telecommunication), Carrier Waves, Carrier frequencies, Carrier frequency, Carrier leakage, Carrier signal, Carrier-wave, Unmodulated carrier.