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Transmitting information with a carrier wave
Space modulation is a radio modulation technique employed in an Instrument Landing System (ILS) that uses multiple antennas to transmit signals with varying
Space_modulation
Algorithm on pulse-width modulation
Space vector modulation (SVM) is an algorithm for the control of pulse-width modulation (PWM), invented by Gerhard Pfaff, Alois Weschta, and Albert Wick
Space_vector_modulation
Modulation spaces are a family of Banach spaces defined by the behavior of the short-time Fourier transform with respect to a test function from the Schwartz
Modulation_space
Process of varying one or more properties of a periodic waveform
Signal modulation is the process of varying one or more properties of a periodic waveform in electronics and telecommunication for the purpose of transmitting
Signal_modulation
Representation of a signal as a rectangular wave with varying duty cycle
Pulse-width modulation (PWM), also known as pulse-duration modulation (PDM) or pulse-length modulation (PLM), is any method of representing a signal as
Pulse-width_modulation
2D modulation technique
Orthogonal Time Frequency Space (OTFS) is a 2D modulation technique that transforms the information carried in the Delay-Doppler coordinate system. The
Orthogonal Time Frequency Space
Orthogonal_Time_Frequency_Space
High-energy particle, mainly originating outside the Solar System
Cummings, A. C.; Stone, E. C. (1998). "Anomalous Cosmic Rays and Solar Modulation". Space Science Reviews. 83 (1–2): 51–62. doi:10.1023/A:1005057010311. Tomassetti
Cosmic_ray
Signal conversion technique
Delta modulation (DM, ΔM, or Δ-modulation) is an analog-to-digital and digital-to-analog signal conversion technique used for transmission of voice information
Delta_modulation
Electronic method of transmitting information with a carrier wave
Amplitude modulation (AM) is a signal modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave
Amplitude_modulation
Digital representation of sampled analog signals
Pulse-code modulation (PCM) is a method used to digitally represent analog signals. It is the standard form of digital audio in computers, compact discs
Pulse-code_modulation
Form of signal modulation
Pulse-amplitude modulation (PAM) is a form of signal modulation in which the message information is encoded in the amplitude of a pulse train interrupting
Pulse-amplitude_modulation
Family of digital modulation methods
Quadrature amplitude modulation (QAM) is the name of a family of signal modulation methods widely used in modern telecommunications to transmit information
Quadrature amplitude modulation
Quadrature_amplitude_modulation
World governing body for air sports
from 14 to 16 October 2026. 13 Sports: Aeromodelling (modelling (space modulation) – Space Modelling) Amateur-Built & Experimental Aircraft Ballooning Drones
Fédération Aéronautique Internationale
Fédération_Aéronautique_Internationale
Change from one tonality to another
In music, modulation is the change from one tonality (tonic, or tonal center) to another. This may or may not be accompanied by a change in key signature
Modulation_(music)
Method for converting signals between digital and analog
Delta-sigma (ΔΣ; or sigma-delta, ΣΔ) modulation is an oversampling method for encoding signals into low bit depth digital signals at a very high sample-frequency
Delta-sigma_modulation
Electronic method of transmitting information with a carrier wave
communications, single-sideband modulation (SSB) or single-sideband suppressed-carrier modulation (SSB-SC) is a type of signal modulation used to transmit information
Single-sideband_modulation
Electromagnetic frequencies ranging from 3 kHz to 300 GHz
systems are not uncommon: see mechanical filter and RF MEMS. Amplitude modulation (AM) Bandwidth (signal processing) Electromagnetic interference Electromagnetic
Radio_frequency
Electronic method of transmitting information with a carrier wave
Frequency modulation (FM) is a signal modulation technique used in electronic communication, originally for transmitting messages with a radio wave. In
Frequency_modulation
Sinusoidal wave without any modulation
information is transmitted across space by radio waves. At the sending end, the information, in the form of a modulation signal, is applied to an electronic
Carrier_wave
Pattern used within a communications system to represent digital data
Eight-to-fourteen modulation (EFM), used in compact discs Hamming code Hybrid ternary code Manchester code and differential Manchester Mark and space MLT-3 encoding
Line_code
Technology of power electronics
is nearly sinusoidal. Common modulation techniques include the carrier-based technique, or Pulse-width modulation, space-vector technique, and the selective-harmonic
Power_electronics
Partially reusable launch system and space plane
National Aeronautics and Space Administration (NASA) as part of the Space Shuttle program. Its official program name was the Space Transportation System
Space_Shuttle
Modulation format used in HDSL2 and G.SHDSL
one-dimensional pulse-amplitude modulation (PAM) symbol space, as opposed to a two-dimensional quadrature amplitude modulation (QAM) symbol space. Compared to the 2B1Q
TC-PAM
Musical technique
In music, metric modulation is a change in pulse rate (tempo) and/or pulse grouping (subdivision) that is derived from a note value or grouping heard before
Metric_modulation
Radio transmission of audio by frequency modulation
FM broadcasting is a radio broadcasting method that uses frequency modulation (FM) transmissions. In November 1919, Hans Idzerda began broadcasts, using
FM_broadcasting
Use of radio waves for communication
modulation methods: Amplitude modulation (AM) – in an AM transmitter, the amplitude (strength) of the radio carrier wave is varied by the modulation signal;
Radio
Data communications modulation protocol
Frequency-shift keying (FSK) is a frequency modulation scheme in which digital information is encoded on a carrier signal by periodically shifting the
Frequency-shift_keying
world's largest Solar Space Telescope in 2008, and Project 973 Space Hard X-Ray Modulation Telescope (硬X射线调制望远镜) by 2010. Chinese Deep Space Network with the
Chinese_space_program
Radio communication system implemented in software
include every common amateur modulation: morse code, single-sideband modulation, frequency modulation, amplitude modulation, and a variety of digital modes
Software-defined_radio
Method to control electric motors
measured current components at their reference values. The pulse-width modulation of the variable-frequency drive defines the transistor switching according
Field-oriented_control
deflection. A modulation depth comparison navigational aid (MDCNA), also known as an Instrument Landing System, uses the concept of space modulation to provide
Difference in the depth of modulation
Difference_in_the_depth_of_modulation
Signal transmission technique
In signal processing, spatial modulation is a technique that enables modulation over space, across different antennas at a transmitter. Unlike multiple-input
Spatial_modulation
Type of data encoding
is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency carrier wave. The modulation is accomplished
Phase-shift_keying
Office within NASA
3 Phase Modulation (PM) Signal Parameters (Rev 9 ed.). National Aeronautics and Space Administration. 450-SNUG. NASA, Exploration and Space Communications
Space Communications and Navigation Program
Space_Communications_and_Navigation_Program
Form of signal modulation using time shifts
Pulse-position modulation (PPM) is a form of signal modulation in which M message bits are encoded by transmitting a single pulse in one of 2 M {\displaystyle
Pulse-position_modulation
Captured German V-2 rockets modified to carry scientific instruments
adjacent pulses, not entirely unlike the technique of pulse-position modulation. Space between first and second pulses was determined by channel 1, between
V-2_sounding_rocket
Method of encoding digital data on multiple carrier frequencies
multiplexing (OFDM) is a type of digital transmission used in digital modulation for encoding digital (binary) data on multiple carrier frequencies. OFDM
Orthogonal frequency-division multiplexing
Orthogonal_frequency-division_multiplexing
Type of amplitude-shift keying modulation
keying (OOK) denotes the simplest form of amplitude-shift keying (ASK) modulation that represents digital data as the presence or absence of a carrier wave
On–off_keying
Rocketry and spacecraft propulsion research center
The Marshall Space Flight Center (officially the George C. Marshall Space Flight Center; MSFC), located in Redstone Arsenal, Alabama (Huntsville postal
Marshall_Space_Flight_Center
Communication using light sent through free space
be used for space lighting can typically be modulated up to 20 MHz. Data rates of over 100 Mbit/s can be achieved using efficient modulation schemes and
Free-space optical communication
Free-space_optical_communication
American science fiction TV series (1995–96)
Space: Above and Beyond is an American science fiction television series that aired on Fox, created and written by Glen Morgan and James Wong. Planned
Space:_Above_and_Beyond
The Modulation sphere or M-space formulation is a scheme or theory representing the system of effects of phase modulation and amplitude modulation as applied
Modulation_sphere
Characteristic of an optical system
primary importance. This derived function is commonly referred to as the modulation transfer function (MTF). The image on the right shows the optical transfer
Optical_transfer_function
Cosmic rays inside the heliosphere
Cummings, A. C.; Stone, E. C. (1998). "Anomalous Cosmic Rays and Solar Modulation". Space Science Reviews. 83 (1–2): 51–62. doi:10.1023/A:1005057010311. Tomassetti
Anomalous_cosmic_ray
Radio modulation design
Binary offset carrier modulation (BOC modulation) was developed by John Betz in order to allow interoperability of satellite navigation systems. It is
Binary offset carrier modulation
Binary_offset_carrier_modulation
Transmission of information electromagnetically
several different modulation schemes available to achieve this [two of the most basic being amplitude modulation (AM) and frequency modulation (FM)]. An example
Telecommunications
Rate of modulation of a digital signal
In a digitally modulated signal or a line code, symbol rate, modulation rate or baud is the number of symbol changes, waveform changes, or signaling events
Symbol_rate
Method for modulation of data
phase modulation (CPM) is a method for modulation of data commonly used in wireless modems. In contrast to other coherent digital phase modulation techniques
Continuous_phase_modulation
Process of extracting the original information-bearing signal from a carrier wave
content from the modulated carrier wave. There are many types of signal modulation, and there are many types of demodulators. The signal output from a demodulator
Demodulation
Mobile data technology for GSM networks
EGPRS/EDGE, the modulation and coding schemes MCS-1 to MCS-9 take the place of the coding schemes of GPRS, and additionally specify which modulation scheme is
EDGE_(telecommunication)
Multidimensional modulation (MD modulation) is modifying or multiplying an MD signal (typically sinusoidal and referred to as the carrier signal) with
Multidimensional_modulation
Television content transmitted via signals in the air
Sound-in-Syncs Zweikanalton Modulation Frequency modulation Quadrature amplitude modulation Vestigial sideband modulation (VSB) Transmission Amplifiers
Terrestrial_television
Electromagnetic wave range of 30–300 MHz
137–138 MHz Space research, space operations, meteorological satellite 138–144 MHz: Land mobile, auxiliary civil services, satellite, space research, and
Very_high_frequency
Tracking and communication system developed by NASA and JPL
unambiguous range measurements at long distances. The choice of optimum modulation methods and waveforms for the upward and downward RF links was a key factor
Unified_S-band
Radio broadcasting using amplitude modulation
AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions
AM_broadcasting
Electromagnetic spectrum 300–3000 MHz
satellite tracking, telemetry and control (space-to-Earth, space-to-space) 2290–2300 MHz: NASA Deep Space Network 2300–2305 MHz: Amateur radio (13 cm
Ultra_high_frequency
Optical transceiver that uses coherent modulation
coherent optical transceiver that uses coherent modulation (BPSK/QPSK/QAM) rather than amplitude modulation (RZ/NRZ/PAM4) and is typically used in high-bandwidth
Coherent_optical_module
Digital modulation scheme
Amplitude and phase-shift keying (APSK) is a digital modulation scheme that conveys data by modulating both the amplitude and the phase of a carrier wave
Amplitude and phase-shift keying
Amplitude_and_phase-shift_keying
Voice coding method
Continuously variable slope delta modulation (CVSD or CVSDM) is a voice coding method. It is a delta modulation with variable step size (i.e., special
Continuously variable slope delta modulation
Continuously_variable_slope_delta_modulation
This list of space telescopes (astronomical space observatories) is grouped by major frequency ranges: gamma ray, X-ray, ultraviolet, visible, infrared
List_of_space_telescopes
Type of continuous-phase frequency-shift keying
In digital modulation, minimum-shift keying (MSK) is a type of continuous-phase frequency-shift keying that was developed in the late 1950s by Collins
Minimum-shift_keying
Telecommunications coding technique
neutral or rest condition, such as a zero amplitude in pulse-amplitude modulation (PAM), zero phase shift in phase-shift keying (PSK), or mid-frequency
Non-return-to-zero
Baseband analog video signal format
video capture devices used in broadcast output images with the extra VBI space. Direct sampling with high-speed ADCs and software time base correction
Composite_video
3D printing technique
increase print time, allowing great time savings on multiple parts if there is space to combine them in a single print. SLA-printed parts, unlike those obtained
Stereolithography
Linear error correcting code
low bit error rates. For example, the Reed-Solomon code with LDPC Coded Modulation (RS-LCM) uses a Reed-Solomon outer code. The DVB-S2, the DVB-T2, and the
Low-density_parity-check_code
NASA space probe launched in 1977
is a space probe launched by NASA on September 5, 1977, as part of the Voyager program, to study the outer Solar System and the interstellar space beyond
Voyager_1
Signal representation
representation of a signal modulated by a digital modulation scheme such as quadrature amplitude modulation or phase-shift keying. It displays the signal
Constellation_diagram
Device that transmits and receives radio waves
reception. It is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter
Antenna_(radio)
Spacecraft communications network
point-to-point serial links, and packet switching wormhole routing routers. SpaceWire's modulation and data formats generally follow the data strobe encoding - differential
SpaceWire
Concept in the psychophysics of vision
flicker fusion threshold, also known as critical flicker frequency, flicker modulation threshold, or flicker fusion rate, is the frequency at which a flickering
Flicker_fusion_threshold
Activity fraction of a periodic system
seconds (or 1/100 of the time), its duty cycle is 1/100, or 1%. Pulse-width modulation (PWM) is used in a variety of electronic situations, such as power delivery
Duty_cycle
Earth shield to reduce sunlight
A space sunshade or sunshield is something that diverts or otherwise reduces some of the Sun's radiation, preventing it from hitting the Earth and thereby
Space_sunshade
This is a list of color spaces, grouped by the color model that is used for part of their specification. Color models can be based on physics or human
List of color spaces and their uses
List_of_color_spaces_and_their_uses
Channel access method used by various radio communication technologies
simplest form, but can be combined with any modulation scheme like (in advanced cases) quadrature amplitude modulation (QAM) or orthogonal frequency-division
Code-division_multiple_access
Electronic device that emits radio waves
proportion to the modulation signal. In an FM (frequency modulation) transmitter the frequency of the carrier is varied by the modulation signal. In an FSK
Transmitter
Commercial modem
available in 1959, shortly after AT&T's Bell Labs announced their 110 baud modulation frequencies. The Bell 101 allowed digital data to be transmitted over
Bell_101
Gas chromatography technique
thermal modulation. However, with thermal modulation, cold jet and hot jet pulse duration, length of the second dimension column and modulation time also
Comprehensive two-dimensional gas chromatography
Comprehensive_two-dimensional_gas_chromatography
X-ray space observatory
Hard X-ray Modulation Telescope (HXMT) also known as Insight (Chinese: 慧眼) is a Chinese X-ray space observatory, launched on June 15, 2017 to observe black
Hard X-ray Modulation Telescope
Hard_X-ray_Modulation_Telescope
Communication using lasers in outer space
Laser communication in space is the use of free-space optical communication in outer space. Communication may be fully in space (an inter-satellite laser
Laser_communication_in_space
Type of device
obtain modulation of intensity of a light beam is to modulate the current driving the light source, e.g. a laser diode. This sort of modulation is called
Optical_modulator
Modem for computers released by AT&T in 1962
common use, this encoding scheme is referred to generically as "Bell 103 modulation", and any device employing it as "Bell 103-compatible" or "a Bell 103
Bell_103
Austrian mathematician (born 1951)
listed below. In the early 1980s, Feichtinger introduced modulation spaces, a family of function spaces defined by the behavior of the short-time Fourier transform
Hans_Georg_Feichtinger
Television transmission technology
airing until 1970. (The first four, comprising the story Spearhead from Space, were shot on film owing to a technician's strike, with videotape being
Color_television
Type of two-way radio service
following five frequencies: Channels 1–3 must use "narrowband" frequency modulation (2.5 kHz deviation; 11.25 kHz bandwidth). Channels 4 and 5 may use either
Multi-Use_Radio_Service
Family of digital video interfaces
interface is indicated by a VPID packet located in the vertical ancillary data space. Note that the data layout in dual link is designed so that the primary
Serial_digital_interface
Non-commercial use of the radio spectrum
research. The principal voice modes are frequency modulation (FM), single sideband (SSB), and amplitude modulation (AM). FM offers high audio quality, SSB is
Amateur_radio
Behaviour of travelling radio waves
propagation include: Models for free space attenuation Free-space path loss Dipole field strength in free space Friis transmission equation Models for
Radio_propagation
Device that both transmits and receives
frequency modulation to send and receive data; however, any analog modulation scheme can be used (e.g. amplitude modulation or single-sideband modulation). Although
Transceiver
Device that modulates an analog carrier signal to encode digital information
as tones using frequency shift keying (FSK). This was also a digital modulation technique, making this an early modem. Commercial modems largely did not
Modem
Russian global navigation satellite system
with BPSK(1) modulation for data and BOC(1,1) modulation for pilot; wide-band restricted signals L1SC and L2SC use BOC (5, 2.5) modulation for both data
GLONASS
DC-free run-length limited line code used by several optical disc formats
Eight-to-fourteen modulation (EFM) is a data encoding technique – formally, a line code – used by compact discs (CD), laserdiscs (LD) and pre-Hi-MD MiniDiscs
Eight-to-fourteen_modulation
Ultra high frequency radio to transmit TV
signals can pass through smaller openings than VHF. These openings are the spaces between any metal in the area, including lines of nails or screws in the
UHF_television_broadcasting
Mathematical transformation in engineering
transformation is the generation of the reference signal used for space vector modulation control of three-phase inverters. In 1937 and 1938, Edith Clarke
Alpha–beta_transformation
Audio bug to spy on US embassy in Moscow
as a condenser microphone and providing amplitude modulation (AM), with parasitic frequency modulation (FM) for the re-radiated signal. The post had machined
The_Thing_(listening_device)
American astrophysicist
Solar Cycle of Activity, Interpreted in Terms of the Electric Field Modulation." Space Science Reviews. 4: 313-372. Freier, P. S.; Waddington, C. J. (1975)
Phyllis_S._Freier
Image transmission over radio
similar radiofax mode, SSTV is an analog signal. SSTV uses frequency modulation, in which every different value of brightness in the image gets a different
Slow-scan_television
Collective excitation in aperiodic materials
associated with atomic rearrangement. As a result of this rearrangement, or modulation, the waves that describe the position of atoms in the crystal change phase—hence
Phason
Spreading the frequency domain of a signal
SATA systems, the most common technique is downspreading, via frequency modulation with a lower-frequency source. Spread-spectrum clocking, like other kinds
Spread_spectrum
Object detection system using radio waves
a breadboard test unit, operating at 50 cm (600 MHz) and using pulsed modulation which gave successful laboratory results. In January 1931, a writeup on
Radar
Use of light in the visible spectrum as a telecommunication medium
sources for data transmission. In order to send data, a modulation of light is required. A modulation is the form in which the light signal varies in order
Visible_light_communication
MODULATION SPACE
MODULATION SPACE
Girl/Female
British, Christian, English
Temperance; One of the Qualities Adopted as a First Name by the Puritans After the Reformation; Moderation; Self Restraint
Girl/Female
Arabic, Muslim
Population
Girl/Female
Arabic, Muslim
Balance; Temperance; Moderation
Girl/Female
Indian
Moderation, Equality
Boy/Male
Hindu
Space
Boy/Male
Hindu
Space
Girl/Female
Arabic, Muslim
Population; Socialism; Powerful; Prosperous
Girl/Female
Muslim
Population, Socialism
Boy/Male
Muslim
Strong, Prosperity population, A prophets name
Surname or Lastname
English (southwestern)
English (southwestern) : from Middle English hous ‘house’ (Old English hūs). In the Middle Ages the majority of the population lived in cottages or huts rather than houses, and in most cases this name probably indicates someone who had some connection with the largest and most important building in a settlement, either a religious house or simply the local manor house. In some cases it may be a status name for a householder, someone who owned his own dwelling as opposed to being a tenant, but more often it is an occupational name for a servant who worked in such a house, in particular a steward who managed one.English : respelling of Howes.Translation of German Haus.
Surname or Lastname
English and Scottish
English and Scottish : ethnic name for someone from Ireland, Old English Īraland. The country gets its name from the genitive case of Old English Īras ‘Irishmen’ + land ‘land’. The stem Īr- is taken from the Celtic name for Ireland, Èriu, earlier Everiu. The surname is especially common in Liverpool, England, which has a large Irish population.
Girl/Female
Indian
Population, Socialism
Boy/Male
Indian
Strong, Prosperity population, A prophets name
Girl/Female
Tamil
Antariksha | அஂதரிகà¯à®·
Space, Sky
Antariksha | அஂதரிகà¯à®·
Boy/Male
Indian
Strong, Prosperity population, A prophets name
Boy/Male
Muslim
Strong, Prosperity population, A prophets name
Girl/Female
Arabic, Muslim
Moderation; Neutrality
Boy/Male
Hindu
Limitless space Avatar incarnation
Girl/Female
Muslim
Moderation, Equality
Female
English
English name derived from the vocabulary word, TEMPERANCE means "moderation, self-restraint."
MODULATION SPACE
MODULATION SPACE
Girl/Female
American, Australian, British, Chinese, Christian, Danish, English, French, German, Jamaican, Latin, Netherlands
Greatest; Great Woman; Stream of Mack
Boy/Male
Hindu, Indian
Travel
Girl/Female
Muslim/Islamic
Beautiful graceful
Boy/Male
Australian, Irish
Valiant; From Riley
Male
Russian
(ÐÌлекÑ) Short form of Russian Aleksei, ALEKS means "defender."
Boy/Male
Arabic, Muslim
Skilled
Boy/Male
Tamil
Excellent, The best
Boy/Male
Indian, Sanskrit
Couple; Zodiac Sign Gemini
Girl/Female
Hindu, Indian
Cupid or Follower of Lord Shiva
Surname or Lastname
English
English : patronymic from Setter.
MODULATION SPACE
MODULATION SPACE
MODULATION SPACE
MODULATION SPACE
MODULATION SPACE
n.
The process of cleavage, or segmentation, of the ovum, by which a morula is formed.
n.
Depopulation; destruction of population.
n.
An affected modulation of the voice; a kind of nasal sound.
n.
Freedom from passion; moderation.
n.
The act of modulating, or the state of being modulated; as, the modulation of the voice.
n.
The whole number of people, or inhabitants, in a country, or portion of a country; as, a population of ten millions.
n.
Flattery; adulation; smooth speech.
n.
Sound modulated; melody.
n.
A change of key, whether transient, or until the music becomes established in the new key; a shifting of the tonality of a piece, so that the harmonies all center upon a new keynote or tonic; the art of transition out of the original key into one nearly related, and so on, it may be, by successive changes, into a key quite remote. There are also sudden and unprepared modulations.
n.
A quavering modulation of the voice; a musical trill; a song.
n.
Moderation.
n.
Want of moderation.
n.
Copulation from behind.
n.
A chanting; recitation or reading with musical modulations.
n.
Population; inhabitants.
a.
Ridiculing with moderation.
n.
Calmness of mind; equanimity; as, to bear adversity with moderation.
n.
The act of copulation in birds.
n.
Moderation; temperance.
v. t.
To cover in copulation.