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Alternative Morse code transmission technique
Modulated continuous wave (MCW) is Morse code telegraphy transmitted using an audio tone to modulate a carrier wave. Continuous wave (CW), by contrast
Modulated_continuous_wave
Type of radar where a known stable frequency continuous wave radio energy is transmitted
during normal operation. Frequency-modulated continuous-wave radar (FM-CW) – also called continuous-wave frequency-modulated (CWFM) radar – is short-range
Continuous-wave_radar
Electromagnetic wave that is not pulsed
A continuous wave, or continuous waveform, (CW) is an electromagnetic wave of constant amplitude and frequency, typically a sine wave, that for mathematical
Continuous_wave
chopping or turning the signal on and off at an audio rate), or modulated continuous wave (MCW), could produce intelligible output from a receiver. When
Autodyne
Self-driving vehicle technology company
Blackmore, a Bozeman, Montana-based company focusing on Frequency Modulated Continuous Wave (FMCW) lidar. In June 2019, Aurora announced a partnership with
Aurora_Innovation
Instrument used to determine the height of an object above a certain point
from the surface back to the aircraft. Alternatively, Frequency Modulated Continuous-wave radar can be used. The greater the frequency shift the further
Altimeter
Type of amplitude-shift keying modulation
to transmit Morse code over radio frequencies (referred to as CW (continuous wave) operation), although in principle any digital encoding scheme may
On–off_keying
WW II-era U.S. military aircraft radio system
tone-modulated, and continuous wave (cw) signals." Its flexible design provided AM radiotelephone voice communication and Modulated continuous wave (MCW)
AN/ARC-5
Type of South African naval vessel
primary sensor is the Reutech Radar Systems RTS 3200: a frequency-modulated continuous-wave radar/optronics tracker (FORT) that was previously trialled aboard
Warrior-class inshore patrol vessel
Warrior-class_inshore_patrol_vessel
Signal processing technique
waveforms are used in frequency modulated continuous wave radars (FM-CW) to measure range (distance); an unmodulated continuous wave Doppler radar can only measure
Chirp_spread_spectrum
Process of varying one or more properties of a periodic waveform
frequencies is known as continuous wave (CW) operation. Adaptive modulation Space modulation is a method whereby signals are modulated within airspace such
Signal_modulation
Measures an aircraft's height above the terrain
displayed on analog instruments. This technique is known as Frequency Modulated Continuous-wave radar. Radar altimeters normally work in the E band, Ka band,
Radar_altimeter
Non-commercial use of the radio spectrum
radio equipment. Radiotelegraphy using International Morse code, or Continuous Wave (CW), is one of the oldest modes in amateur radio. Although largely
Amateur_radio
American multinational technology company
Aeva develops what it describes as "4D LiDAR" using Frequency Modulated Continuous Wave (FMCW) technology to detect 3D position and instant velocity for
Aeva
Type of radar equipment
included CW, but these quickly led to the development of frequency modulated continuous wave (FMCW) radar, which sweeps the transmitter frequency to encode
Doppler_radar
of a continuous wave carrier by Morse code symbols, often called amplitude-shift keying or ASK, may be considered to be an amplitude modulated mode of
List_of_amateur_radio_modes
Geophysical method that uses radar pulses to image the subsurface
radar signal: these are impulse, stepped frequency, frequency-modulated continuous-wave (FMCW), and noise. Systems on the market in 2009 also use Digital
Ground-penetrating_radar
Range imaging camera system
It illuminates the scene. For RF-modulated light sources with phase detector imagers, the light has to be modulated with high speeds up to 100 MHz, only
Time-of-flight_camera
Method of spatial measurement using laser
"Atmospheric CO2 column measurements with an airborne intensity-modulated continuous wave 1.57 μm fiber laser lidar". Applied Optics. 52 (12): 2874–2892
Lidar
German multinational electronics company
instantaneous amplitude, frequency and phase and detects also frequency-modulated continuous wave (FMCW) radars and solid-state radars operating at very low power
Rohde_&_Schwarz
Ways in which length, distance or range can be measured
equipment (aviation) Ellipsometry#Imaging ellipsometry Frequency-modulated continuous-wave radar (FMCW) Length scale Low-energy electron microscopy Orders
Length_measurement
Classification of radio frequency signals
beacons, usually but not exclusively Morse code (an example of a modulated continuous wave, as opposed to A1A, above). F1B Frequency-shift keying (FSK) telegraphy
Types_of_radio_emissions
CEO of self-driving technology company Aurora
and acquired Blackmore, a company specializing in Frequency Modulated Continuous Wave (FMCW) lidar. As of December 2019, Aurora Innovation has almost
Chris_Urmson
French armoured reconnaissance vehicle
protection system being developed by Thales comprising four frequency-modulated continuous-wave radar sensors mounted on the corners of the vehicle, a number
EBRC_Jaguar
Electronic method of transmitting information with a carrier wave
For example, in AM radio communication, a continuous wave radio-frequency signal has its amplitude modulated by an audio waveform before transmission.
Amplitude_modulation
Technical design of the components of a radar and its operation
bandwidth of the radar sensor in both pulse-Doppler and frequency modulated continuous wave (FMCW) radars. Monostatic monopulse-Doppler radar sensors offer
Radar_engineering
Rangefinder and collision detection system
battlefield threats: The rangefinder is a Doppler radar using frequency-modulated continuous-wave FMCW technology to emit a radar signal and can be set to trigger
M734_fuze
Dynamic disturbance in a medium or field
amplitude of a wave may be constant (in which case the wave is a c.w. or continuous wave), or may be modulated so as to vary with time and/or position. The outline
Wave
Aviation navigation system
signal also contains a modulated continuous wave (MCW) 7 wpm Morse code station identifier, and usually contains an amplitude modulated (AM) voice channel
VHF_omnidirectional_range
US military portable radio transceiver
combat-net radio from low-HF (high frequency) AM/CW (amplitude modulated/ continuous wave) to low-VHF (very high frequency) FM. Although a relatively large
SCR-300
French armoured personnel carrier
protection system being developed by Thales comprising four frequency-modulated continuous-wave radar sensors mounted on the corners of the vehicle, a number
VBMR_Griffon
Electronic method of transmitting information with a carrier wave
Wikimedia Commons has media related to Frequency modulation. Continuous-wave frequency-modulated radar Chirp FM stereo FM-UWB (FM and Ultra Wideband) History
Frequency_modulation
decomposition of the fuel is then used to create a frequency modulated continuous wave acoustic ranging signal that is Doppler insensitive (used for
Reciprocating_Chemical_Muscle
backbone of the army's mechanized infantry forces for decades, undergoing continuous upgrades including the Mk2 (1979), Mk3 (1988), and a large fleet-wide
List of equipment of the South African Army
List_of_equipment_of_the_South_African_Army
Portable World War II-era US military two-way radio
modulation of the power amplifier is provided in radiotelephone and modulated continuous wave operation. Radio frequency (RF) power output 2 watts to 25 watts
SCR-694
Mathematical technique for manipulating signals
phase-modulated carrier. Or in other words, it is possible to create an arbitrarily phase-shifted sine wave, by mixing together two sine waves that are
In-phase and quadrature components
In-phase_and_quadrature_components
Method for modulation of data
start of every symbol (e.g. M-PSK), with CPM the carrier phase is modulated in a continuous manner. For instance, with QPSK the carrier instantaneously jumps
Continuous_phase_modulation
Over-the-horizon radar network in Australia
nor does it use movable antennas. Transmission is Frequency-Modulated Continuous Wave (FMCW), and the transmitted beam is aimed by the interaction between
Jindalee Operational Radar Network
Jindalee_Operational_Radar_Network
American electrical engineer
frequency active multiplier, the first fully integrated frequency modulated continuous wave (FMCW) radar operating above 200 GHz, and the first phase-locked
Ehsan_Afshari
Application of radar which is used to create two-dimensional images
is a 94 GHz real aperture 3D imaging radar. It uses Frequency-Modulated Continuous-Wave modulation and employs a mechanically scanned monostatic with
Imaging_radar
Representation of a signal as a rectangular wave with varying duty cycle
by varying (i.e. modulating) the duty cycle (and possibly also the period), the following more advanced pulse-width modulated waves allow variation of
Pulse-width_modulation
Information method in electromagnetic radiation
counting photodetectors. Photon counting was applied with frequency-modulated continuous wave (FMCW) lasers. Numerical algorithms were developed to optimize
Optical_heterodyne_detection
Topics referred to by the same term
Weymann, former United Kingdom bus manufacturer Modulated continuous wave, method for transmitting continuous wave information over other types of radio emissions
MCW
Technology for measuring surface waves on water
transmitter waveform may be either unmodulated continuous wave, modulated or pulsed. An unmodulated continuous wave radar has no range resolution, but can resolve
Wave_radar
Integrated circuit technology
radar cocooning with 360° perception, cocoon radar, Frequency Modulated Continuous Wave (FMCW) radar, corner radar functions, radar tracker Transceivers
RF_CMOS
Incoherent light source
series, and can produce square wave pulses. It can even be used with simmer voltage to produce a "modulated" continuous wave output, with repetition rates
Flashtube
Electronic device that emits radio waves
Vacuum tube transmitters were inexpensive and produced continuous waves, and could be easily modulated to transmit audio (sound) using amplitude modulation
Transmitter
Wolff, I; Luck, D G C (September 1948). "Some Applications of Frequency-Modulated Radar" (PDF). RCA Review. 9. New York, New York: RCA Corp: 532–555. (196
List of military electronics of the United States: A–G
List_of_military_electronics_of_the_United_States:_A–G
Distance over which a wave's shape repeats
repeating envelope of modulated waves or waves formed by interference of several sinusoids. Assuming a sinusoidal wave moving at a fixed wave speed, wavelength
Wavelength
Laser system for scanning 3D objects
grating couplers operates based on a modified time-domain frequency modulated continuous wave (FMCW) ranging scheme, where concurrent time-domain measurements
Nanophotonic_coherent_imager
Aircraft which flies without a human pilot
and computing power: phased array spatial light modulators, and frequency-modulated-continuous-wave (FMCW) MEMS-tunable vertical-cavity surface-emitting
Autonomous_aircraft
Mars rover-bound radar imager
Canada and the United States. RIMFAX employs a gated Frequency Modulated Continuous Wave (FMCW) waveform to probe the subsurface. Gated FMCW uses a single
RIMFAX
Command of the Spanish Army
Semiautomático Ligero Netherlands Spain X-band, FMCW (frequency modulated continuous wave), air surveillance radar Unclear Radar that can be used on its
Spanish Army Air Defence Command
Spanish_Army_Air_Defence_Command
Type of electromagnetic radiation
photons, radio wave emission and absorption is usually regarded as a continuous classical process, governed by Maxwell's equations. Radio waves in a vacuum
Radio_wave
Rule in telecommunications
frequency modulated by a continuous or broad spectrum of frequencies rather than a single frequency. Carson's rule does not apply well when the modulating signal
Carson_bandwidth_rule
Use of radio waves for communication
modulated carrier wave. The modulation signal is converted by a transducer back to a human-usable form: an audio signal is converted to sound waves by
Radio
Weather radar tuned to cloud detection
modulation of the transmitted signal (e.g. 4 m for the Frequency-Modulated Continuous-Wave (FMCW) 94 GHz cloud radar operating at UK Met Office), to several
Millimeter_cloud_radar
Preservation of heritage collections
25 April 2016. Guillet, Jean-Paul (2018). "Terahertz frequency modulated continuous wave imaging for non-destructive evaluation of painting and multilayer
Conservation and restoration of paintings
Conservation_and_restoration_of_paintings
Periodic rectangular waveform
wave generation can be categorized into two main types: finite pulse wave generation, which produces a predetermined number of pulses, and continuous
Pulse_wave
Data communications modulation protocol
baseband frequencies. In radio applications, the AFSK-modulated signal normally is being used to modulate an RF carrier (using a conventional technique, such
Frequency-shift_keying
Process of extracting the original information-bearing signal from a carrier wave
radio) that is used to recover the information content from the modulated carrier wave. There are many types of signal modulation, and there are many types
Demodulation
systems. Additionally, stationary, phase-sensitive, and Frequency Modulated Continuous Wave (FMCW) radars have been used to observe snow, ice shelf melt rates
Radioglaciology
Measure of change in a periodic variable
frequency- and phase-modulated waveform envelopes. For symmetric periodic waves, like sine waves, square waves, or triangle waves, peak amplitude and semi
Amplitude
High-frequency AC generator for radio transmission
first devices capable of generating the continuous radio waves needed for transmission of amplitude modulated (AM) signals by radio. It was used from
Alexanderson_alternator
Type of data encoding
be modulated onto the phase of a laser in a differential way. The modulation is a laser which emits a continuous wave, and a Mach–Zehnder modulator which
Phase-shift_keying
Fundamental theorem in condensed matter physics
Schrödinger equation in a periodic potential can be expressed as plane waves modulated by periodic functions. The theorem is named after the Swiss physicist
Bloch's_theorem
Continuous pulse ultra-wideband technology
technology. In orthogonal wave shape modulation, two orthogonal UWB pulse shapes are employed. These are further polarity modulated in a fashion analogous
C-UWB
Method for converting signals between digital and analog
its limits, the output changes state, producing a pulse-width modulated (PWM) output wave. Amplitude information is converted, without quantization noise
Delta-sigma_modulation
Type of radio transmitter
adjacent frequencies, continuous wave transmitters could transmit longer distances with a given output power. They could also be modulated with an audio signal
Spark-gap_transmitter
Microchip manipulating light instead of electricity
systems is the externally modulated laser (EML) which combines a distributed feed back laser diode with an electro-absorption modulator on a single InP based
Photonic_integrated_circuit
Type of laser diode
An alternate structure is an electro-absorption modulated laser (EML) that runs the laser continuously and has a separate section integrated in front that
Distributed-feedback_laser
Object detection system using radio waves
used in continuous wave radar and is often found in aircraft radar altimeters. In these systems a "carrier" radar signal is frequency modulated in a predictable
Radar
Device that emits light via optical amplification
or pumping mechanism, then it is still classified as a "modulated" or "pulsed" continuous wave laser. Most laser diodes used in communication systems fall
Laser
Measurement of a signal at discrete time intervals
sampling is the reduction of a continuous-time signal to a discrete-time signal. A common example is the conversion of a sound wave to a sequence of "samples"
Sampling_(signal_processing)
Neural oscillation in the 25–140Hz range
dendritic axis of given cortical elements, and that the resonance is modulated by the brainstem and is given content by sensory input in the awake state
Gamma_wave
Synthesizer
volume-controlled via its dedicated digitally-controlled amplifier, and modulated. Oscillator amplifiers provide room to be overdriven, and thus produce
Ensoniq_ESQ-1
Warning system for train drivers used in Ireland
the train, one over each rail. The 50 Hz carrier signal is modulated with pulsed square wave codes according to the signal aspect. No code is generated
Continuous Automatic Warning System
Continuous_Automatic_Warning_System
Integral transform
In mathematics, the continuous wavelet transform (CWT) is a formal (i.e., non-numerical) tool that provides an overcomplete representation of a signal
Continuous_wavelet_transform
Frequency swept signal
it is usually called linear frequency modulated waveform (LFMW). In spread-spectrum usage, surface acoustic wave (SAW) devices are often used to generate
Chirp
Classification of power amplifier
an input waveform into a continuously pulse-width modulated analog signal. (A digital waveform would be pulse-code modulated.) Other amplifier classes
Power_amplifier_classes
Electronic component
radio receivers such as crystal radio receivers in order to receive continuous wave (CW) radiotelegraphy signals. In the early years of the 20th century
Tikker
Signal used to represent data as a sequence of discrete values
long wires or over a limited radio frequency band. Such a carrier-modulated sine wave is considered a digital signal in literature on digital communications
Digital_signal
German longwave time signal radio station
signal carries an amplitude-modulated, pulse-width coded 1 bit/s data signal. The same data signal is also phase modulated onto the carrier using a 512-bit
DCF77
Soviet and Russian automatic train signaling system
(Russian Federation, Ukraine, Belarus, Latvia, Lithuania, Estonia). It uses modulated pulses inducted into rails similar to the Italian RS4 Codici and American
ALSN
Branch of mathematics
s_{_{P}}(t),} with period P , {\displaystyle P,} becomes a Dirac comb function, modulated by a sequence of complex coefficients: S [ k ] = 1 P ∫ P s P ( t ) ⋅ e
Fourier_analysis
Circuit which produces an optical or electronic sine wave signal
electronic sine wave and/or modulated optical continuous wave signals. An opto-electronic oscillator is based on converting the continuous light energy from
Opto-electronic_oscillator
Signal processing technique
transmitter in 1904, continuous wave (CW) modulation began to be used for radiotelegraphy. CW Morse code signals are not amplitude modulated, but rather consist
Heterodyne
unmodulated carrier (Continuous wave). No special modulator is required. This interrupted carrier may be analyzed as an AM-modulated carrier. On-off keying
Radio_transmitter_design
Signal able to be decoded without an outside source of synchronization
and data transfer into one continuous signal. Instead, the transmission of clock cycles and data transmission is modulated. Below is an example signal
Self-clocking_signal
Special state of wave and quantum systems in physics
therefore do not interact with the states of the continuous spectrum and cannot decay. Source: The wave function of one of the continuum states is modified
Bound_state_in_the_continuum
Electronic test equipment used to generate electrical waveforms
pure or modulated sine signals only. Function generators, like most signal generators, may also contain an attenuator, various means of modulating the output
Function_generator
Optical component which splits light into several beams
a grating modulates the amplitude of an incident wave to create a diffraction pattern. Some gratings modulate the phases of incident waves rather than
Diffraction_grating
Optical technique for monitoring brain activity
clinical medicine, developmental psychology, and applied research. Continuous wave (CW) system uses light sources with constant frequency and amplitude
Functional near-infrared spectroscopy
Functional_near-infrared_spectroscopy
Topics referred to by the same term
language CW complex, a type of topological space Carrier wave, a periodic waveform that is modulated in radio communication CodeWarrior, an integrated development
CW
Loudspeaker
reproduction of the sound source when the electric or magnetic field is modulated with the audio signal. Conventional loudspeaker transducer designs use
Plasma_speaker
This is a list of wave topics. Contents: Top 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Index_of_wave_articles
Oscillator used in radio receivers
receiver was the first application of the heterodyne principle. In continuous wave (CW) radio transmission, also called radiotelegraphy, or wireless telegraphy
Beat_frequency_oscillator
Laser source with equal intervals of spectral lines
frequency comb can be generated by modulating the amplitude and/or phase of a continuous-wave laser with an external modulator driven by a radio-frequency source
Frequency_comb
Faint earth tremor caused by natural phenomena
non-linear interactions between surface ocean waves can effectively generate P-wave microseisms and can be modulated by site effect. It has also been shown that
Microseism
always) modulated to allow the system to capture the required data. In simple ranging radars, the carrier will be pulse modulated and in continuous wave systems
Radar_signal_characteristics
MODULATED CONTINUOUS-WAVE
MODULATED CONTINUOUS-WAVE
Girl/Female
Indian
Continuous, Younger sister
Girl/Female
Indian
Continuous, Younger sister
Girl/Female
Muslim
Well populated.
Boy/Male
Indian
Continuous; Without Break
Girl/Female
Muslim American Arabic Hebrew Persian Yiddish
Well populated.
Girl/Female
Hindu, Indian, Marathi, Tamil, Telugu
Continuous Flow
Girl/Female
Hindu, Indian
Continuous
Girl/Female
Tamil
Continuous, Younger sister
Boy/Male
Tamil
Ever lasting, Continuous, Eternal
Boy/Male
Hindu
Continuous
Boy/Male
Hindu, Indian, Marathi
Continuous Extended
Boy/Male
Gujarati, Hindu, Indian
Continuous
Boy/Male
Tamil
Continuous
Boy/Male
Tamil
Continuous
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Continuous
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Continuous
Boy/Male
Tamil
Ever lasting, Continuous, Eternal
Boy/Male
Gujarati, Hindu, Indian, Marathi, Sanskrit
Continuous; Ongoing
Girl/Female
Tamil
Continuous, Younger sister
Boy/Male
Tamil
Continuous
MODULATED CONTINUOUS-WAVE
MODULATED CONTINUOUS-WAVE
Female
Yiddish
(רֵייזָע) Variant spelling of Yiddish Raisa, RAISE means "rose."
Boy/Male
British, English
Highborn and Renowned
Girl/Female
Tamil
Gold, Snow
Girl/Female
Hindu, Indian
A Smile
Boy/Male
British, English
Place Name; Where the Broom Grows
Girl/Female
Hindu, Indian
Laughter
Female
Turkish
Turkish name EKIN means "harvest."
Girl/Female
Tamil
Male
English
Variant form of English Lambert, LAMBART means "land-bright."
Girl/Female
Australian, Finnish, German, Swedish
Sun
MODULATED CONTINUOUS-WAVE
MODULATED CONTINUOUS-WAVE
MODULATED CONTINUOUS-WAVE
MODULATED CONTINUOUS-WAVE
MODULATED CONTINUOUS-WAVE
n.
One who, or that which, modulates.
v. t.
To modulate, as the voice.
n.
Sound modulated; melody.
a.
Contiguous.
n.
Basso continuo, or continued bass.
a.
Furnished with a medulla or marrow, or with a medullary sheath; as, a medullated nerve fiber.
n.
Thread; continuous line.
v. t.
To vary or inflect in a natural, customary, or musical manner; as, the organs of speech modulate the voice in reading or speaking.
imp. & p. p.
of Modulate
a.
Made up of, or divided into, lobules; as, a lobulated gland.
a.
Same as Undulated.
a.
Contiguous.
p. pr. & vb. n.
of Modulate
a.
Without break, cessation, or interruption; without intervening space or time; uninterrupted; unbroken; continual; unceasing; constant; continued; protracted; extended; as, a continuous line of railroad; a continuous current of electricity.
a.
Formed with elevations and depressions resembling waves; having wavelike color markings; as, an undulated shell.
n.
A continuous fever.
a.
Not deviating or varying from uninformity; not interrupted; not joined or articulated.
a.
Alt. of Lobulated
n.
To model; also, to modulate.
adv.
In a continuous maner; without interruption.