-
61 SIN AD
06.04.13 поверхностная акустическая волна [ surface acoustic wave; SAW]: Электроакустический эффект, используемый в системах автоматической идентификации, когда микроволновые радиосигналы малой мощности с помощью пьезоэлектрического кристалла в радиочастотной метке преобразуются в ультразвуковые поверхностные акустические волны.
Примечание - Информация об уникальной идентификации содержится в фазово-временных вариациях отраженного радиочастотной меткой сигнала.
<2>4 Сокращения
ARQ
Автоматический запрос повтора [Automatic Repeat Request]
ASK
Амплитудная манипуляция [Amplitude Shift Keying]
BPSK
Бинарная фазовая манипуляция [Binary Phase Shift Keying]
CDMA
Множественный доступ с кодовым разделением каналов [Code Division Multiple Access]
CSMA
Множественный доступ с анализом состояния канала передачи данных [Carrier Sense Multiple Access]
CSMA/CD
Множественный доступ с анализом состояния канала передачи данных и обнаружением конфликтов [Carrier Sense Multiple Access with Collision Detection]
DBPSK
Дифференциальная бинарная фазовая манипуляция [Differential binary phase shift keying]
DSSS
Широкополосная модуляция с непосредственной передачей псевдослучайной последовательности [Direct sequence spread spectrum modulation]
EIRP (ЭИИМ)
Эквивалентная изотропно-излучаемая мощность [Equivalent Isotropically Radiated Power]
EMI
Электромагнитная помеха [ElectroMagnetic Interference]
ETR
Технический отчет ETSI [European Telecommunications Report]
ETS
Телекоммуникационный стандарт ETSI [European Telecommunications Standard]
ETSI
Европейский институт по стандартизации в области телекоммуникаций [European Telecommunications Standards Institute]
FHSS
Широкополосная модуляция с дискретной перестройкой несущей частоты [Frequency Hopping Spread Spectrum]
FSK
Частотная манипуляция [Frequency Shift Keying]
GHz (ГГц)
Гигагерц [Gigahertz]
GMSK
Минимальная гауссовская манипуляция [Gaussian Minimum Shift Keying]
kHz (кГц)
Килогерц [Kilohertz]
MSK
Минимальнофазовая частотная манипуляция [Minimum shift keying]
MHz (МГц)
Мегагерц [Megahertz]
OBE
Навесное оборудование [On-Board Equipment]
PDM
Модуляция импульса по длительности, широтно-импульсная модуляция [Pulse Duration Modulation]
PM
Фазовая модуляция [Phase modulation]
PPM (ФИМ)
Фазоимпульсная модуляция [Modulation (pulse position)]
PSK
Фазовая манипуляция [Phase Shift Keying]
PWM
Широтно-импульсная модуляция [Pulse Width Modulation]
RF/DC
Обмен данными системы радиочастотной идентификации [Radio frequency data communication]
RFI
Радиопомеха [Radio frequency interference]
RSSI
Индикатор уровня принимаемого сигнала [Receiving Signal Strength Indicator]
S/N
Отношение сигнала к шуму [Signal/noise ratio]
SAW
Поверхностная акустическая волна [Surface Acoustic Wave]
SIN AD
Отношение сигнала к шуму и искажению [Signal to Noise & Distortion]
SRD
Устройство малого радиуса действия [Short Range Device]
TBR
Технические основы регулирования [Technical Basis for Regulation]
TDD
Дуплексная связь с временным разделением каналов [Time Division Duplexing]
TDM
Временное разделение каналов [Time Division Multiplexing]
<2>Библиография
[1]
МЭК 60050-713
(IEC 60050-713)
Международный электротехнический словарь. Часть 713. Радиосвязь: приемники, передатчики, сети и их режим работы
( International Electrotechnical Vocabulary - Part 713: Radiocommunications: transmitters, receivers, networks and operation)
[2]
МЭК 60050-705
(IEC 60050-705)
Международный электротехнический словарь. Глава 705: Распространение радиоволн ( International Electrotechnical Vocabulary - Chapter 705: Radio wave propagation)
[3]
МЭК 60050-702
(IEC 60050-702)
Международный электротехнический словарь. Глава 702: Колебания, сигналы и соответствующие устройства
( International Electrotechnical Vocabulary - Chapter 702: Oscillations, signals and related devices)
[4]
МЭК 60050-121
(IEC 60050-121)
Международный электротехнический словарь. Глава 121: Электромагнетизм ( International Electrotechnical Vocabulary - Part 121: Electromagnetism)
[5]
МЭК 60050-712
(IEC 60050-712)
Международный электротехнический словарь. Глава 712: Антенны ( International Electrotechnical Vocabulary - Chapter 712: Antennas)
[6]
МЭК 60050-221
(IEC 60050-221)
Международный электротехнический словарь. Глава 221: Магнитные материалы и компоненты
( International Electrotechnical Vocabulary - Chapter 221: Magnetic materials and components)
[7]
ИСО/МЭК 2382-9:1995
(ISO/IEC2382-9:1995)
Информационная технология. Словарь. Часть 9. Обмен данными ( Information technology - Vocabulary - Part 9: Data communication)
[8]
МЭК 60050-725
(IEC 60050-725)
Международный электротехнический словарь. Глава 725: Космическая радиосвязь ( International Electrotechnical Vocabulary - Chapter 725: Space radiocommunications)
[9]
МЭК 60050-714
(IEC 60050-714)
Международный электротехнический словарь. Глава 714: Коммутация и сигнализация в электросвязи
( International Electrotechnical Vocabulary - Chapter 714: Switching and signalling in telecommunications)
[10]
МЭК 60050-704
(IEC 60050-704)
Международный Электротехнический словарь. Глава 704. Техника передачи ( International Electrotechnical Vocabulary - Chapter 704: Transmission)
[11]
МЭК 60050-161
(IEC 60050-161)
Международный электротехнический словарь. Глава 161: Электромагнитная совместимость ( International Electrotechnical Vocabulary. Chapter 161: Electromagnetic compatibility)
[12]
ИСО/МЭК 8824-1
(ISO/IEC 8824-1)
Информационные технологии. Абстрактная синтаксическая нотация версии один
(АСН.1). Часть 1. Спецификация основной нотации
(Information technology - Abstract Syntax Notation One (ASN.1): Specification of basic notation)1)
[13]
ИСО/МЭК 9834-1
(ISO/IEC 9834-1)
Информационные технологии. Взаимосвязь открытых систем. Процедуры действий уполномоченных по регистрации ВОС. Часть 1. Общие процедуры и верхние дуги дерева идентификатора объекта АСН.1
( Information technology - Open Systems Interconnection - Procedures for the operation of OSI Registration Authorities: General procedures and top arcs of the ASN. 1 Object Identifier tree)
[14]
ИСО/МЭК 15962]
(ISO/IEC 15962)
Информационные технологии. Радиочастотная идентификация (RFID) для управления предметами. Протокол данных: правила кодирования данных и функции логической памяти
( Information technology - Radio frequency identification ( RFID) for item management - Data protocol: data encoding rules and logical memory functions)
[15]
ИСО/МЭК 19762-1
(ISO/IEC 19762-1)
Информационные технологии. Технологии автоматической идентификации и сбора данных (АИСД). Гармонизированный словарь. Часть 1. Общие термины в области АIDC ( Information technology - Automatic identification and data capture ( AIDC) techniques - Harmonized vocabulary - Part 1: General terms relating to AIDC)
[16]
ИСО/МЭК 19762-2
(ISO/IEC 19762-2)
Информационные технологии. Технологии автоматической идентификации и сбора данных (АИСД). Гармонизированный словарь. Часть 2. Оптические носители данных (ОНД)
( Information technology - Automatic identification and data capture ( AIDC) techniques - Harmonized vocabulary - Part 2: Optically readable media ( ORM))
[17]
ИСО/МЭК 19762-3
(ISO/IEC 19762-3)
Информационные технологии. Технологии автоматической идентификации и сбора данных (АИСД). Гармонизированный словарь. Часть 3. Радиочастотная идентификация (РЧИ)
( Information technology - Automatic identification and data capture ( AIDC) techniques - Harmonized vocabulary - Part 3: Radio frequency identification ( RFID))
[18]
ИСО/МЭК 19762-5
(ISO/IEC 19762-5)
Информационные технологии. Технологии автоматической идентификации и сбора данных (АИСД). Гармонизированный словарь. Часть 5. Системы определения места нахождения
( Information technology - Automatic identification and data capture ( AIDC) techniques - Harmonized vocabulary - Part 5: Locating systems)
[19]
ИСО/МЭК 18000-6
(ISO/IEC 18000-6)
Информационные технологии. Радиочастотная идентификация для управления предметами. Часть 6. Параметры радиоинтерфейса для диапазона частот 860 - 960 МГц ( Information technology - Radio frequency identification for item management - Part 6: Parameters for air interface communications at 860 MHz to 960 MHz)
_____________
1)В оригинале ИСО/МЭК 19762-4 стандарты [12] - [19] включены в раздел «Библиография», однако следует учитывать, что в основном тексте стандарта ссылок на них нет.
<2>
Источник: ГОСТ Р ИСО/МЭК 19762-4-2011: Информационные технологии. Технологии автоматической идентификации и сбора данных (АИСД). Гармонизированный словарь. Часть 4. Общие термины в области радиосвязи оригинал документа
Англо-русский словарь нормативно-технической терминологии > SIN AD
-
62 meter
1) измерительный прибор; средство измерения || измерять2) метр•- admittance meter
- azimuth-indicating meter
- backscatter density meter
- B-H meter
- bias meter
- call meter
- capacitance meter
- cavity-resonator frequency meter
- cavity-tuned absorption-type frequency meter
- cavity-tuned heterodyne-type frequency meter
- cavity-tuned transmission-type frequency-meter
- circuit-noise meter
- coaxial-line frequency meter
- correlation meter
- counting-rate meter
- counting-type frequency meter
- customer's private meter
- dB meter
- decibel meter
- demand meter
- digital panel meter
- dip meter
- distortion meter
- dual meter
- effective-call meter
- elapsed-time meter
- electric power meter
- electrodynamic meter
- electromechanical frequency meter
- expanded-scale meter
- exposure meter
- feed-through power meter
- field-intensity meter
- field-strength meter
- flutter meter
- footcandle meter
- Frahm frequency meter
- frequency meter
- frequency departure meter
- frequency deviation meter
- frequency difference meter
- gamma backscatter thickness meter
- generating electric-field meter
- gradient meter
- grid-dip meter
- Hall-effect power meter
- heterodyne frequency meter
- heterodyne-type frequency meter
- hot-wire meter
- illumination meter
- impedance meter
- induction meter
- induction-type meter
- ineffective-call meter
- integrating meter
- light meter
- luminance meter
- magnet meter
- magnetic-vane meter
- meantime-to-failure meter
- modulation meter
- motor meter
- moving-coil meter
- moving-vane meter
- mutual-conductance meter
- noise meter
- output meter
- peak program meter
- pen meter
- people meter
- percent-modulation meter
- phase meter
- phase-angle meter
- photographic exposure meter
- pocket meter
- portable meter
- power meter
- power-factor meter
- pulse-recurrence frequency meter
- Q-meter
- quality-factor meter
- quotient meter
- radiation survey meter
- radio-altitude meter
- radio-noise meter
- rate meter
- ratio meter
- reactive volt-ampere meter
- recording meter
- recording level meter
- rectifier meter
- reed frequency meter
- reflection-coefficient meter
- resonance frequency meter
- reverberation-time meter
- signal-strength meter
- sound-level meter
- standard meter
- standing-wave meter
- subscriber's private meter
- susceptibility meter
- terminating power meter
- thermal electric meter
- time-interval meter
- transconductance meter
- transmission-type frequency meter
- tuning meter
- universal test meter
- vibrating-reed frequency meter
- vibration meter
- visual-display plate level meter
- voltage standing-wave-ratio meter
- volume unit meter
- VSWR meter
- VU meter
- watt-hour meter
- wow meter -
63 meter
1) измерительный прибор; средство измерения || измерять2) метр•- admittance meter
- azimuth-indicating meter
- backscatter density meter
- B-H meter
- bias meter
- call meter
- capacitance meter
- cavity-resonator frequency meter
- cavity-tuned absorption-type frequency meter
- cavity-tuned heterodyne-type frequency meter
- cavity-tuned transmission-type frequency meter
- circuit-noise meter
- coaxial-line frequency meter
- correlation meter
- counting-rate meter
- counting-type frequency meter
- customer's private meter
- dB meter
- decibel meter
- demand meter
- digital panel meter
- dip meter
- distortion meter
- dual meter
- effective-call meter
- elapsed-time meter
- electric power meter
- electrodynamic meter
- electromechanical frequency meter
- expanded-scale meter
- exposure meter
- feed-through power meter
- field-intensity meter
- field-strength meter
- flutter meter
- footcandle meter
- Frahm frequency meter
- frequency departure meter
- frequency deviation meter
- frequency difference meter
- frequency meter
- gamma backscatter thickness meter
- generating electric-field meter
- gradient meter
- grid-dip meter
- Hall-effect power meter
- heterodyne frequency meter
- heterodyne-type frequency meter
- hot-wire meter
- illumination meter
- impedance meter
- induction meter
- induction-type meter
- ineffective-call meter
- integrating meter
- light meter
- luminance meter
- magnet meter
- magnetic-vane meter
- meantime-to-failure meter
- modulation meter
- motor meter
- moving-coil meter
- moving-vane meter
- mutual-conductance meter
- noise meter
- output meter
- peak program meter
- pen meter
- people meter
- percent-modulation meter
- phase meter
- phase-angle meter
- photographic exposure meter
- pocket meter
- portable meter
- power meter
- power-factor meter
- pulse-recurrence frequency meter
- Q meter
- quality-factor meter
- quotient meter
- radiation survey meter
- radio-altitude meter
- radio-noise meter
- rate meter
- ratio meter
- reactive volt-ampere meter
- recording level meter
- recording meter
- rectifier meter
- reed frequency meter
- reflection-coefficient meter
- resonance frequency meter
- reverberation-time meter
- signal-strength meter
- sound-level meter
- standard meter
- standing-wave meter
- subscriber's private meter
- susceptibility meter
- terminating power meter
- thermal electric meter
- time-interval meter
- transconductance meter
- transmission-type frequency meter
- tuning meter
- universal test meter
- vibrating-reed frequency meter
- vibration meter
- visual-display plate level meter
- voltage standing-wave-ratio meter
- volume unit meter
- VSWR meter
- VU meter
- watt-hour meter
- wow meterThe New English-Russian Dictionary of Radio-electronics > meter
-
64 lens
1) линза5) нефт. линзовидная залежь, линза || отлагаться в виде линзовидной залежи•-
accessory lens
-
achromatic lens
-
acoustic lens
-
acoustic traveling-wave lens
-
afocal lens
-
anamorphotic lens
-
anastigmatic lens
-
anastigmat lens
-
antenna lens
-
antireflection lens
-
aplanatic lens
-
aplanat lens
-
apochromatic lens
-
apochromat lens
-
aspheric lens
-
astigmatic lens
-
attachment lens
-
auto-zoom lens
-
auxiliary lens
-
bayonet-mount lens
-
biconcave lens
-
biconvex lens
-
bifocal lens
-
blimped lens
-
bloomed lens
-
box-shaped lens
-
camera lens
-
catadioptric lens
-
cine lens
-
cine projection lens
-
cinematographic taking lens
-
circular Fresnel lens
-
close-up lens
-
coarse lens
-
coated lens
-
collecting lens
-
collimating lens
-
collimator lens
-
color-corrected lens
-
composite lens
-
concave lens
-
concave-convex lens
-
condenser lens
-
converging-meniscus lens
-
convertible lens
-
convex lens
-
convexo-concave lens
-
convex-concave lens
-
convexo-convex lens
-
corrected lens
-
correcting lens
-
coupling lens
-
deanamorphic lens
-
delay lens
-
demagnification lens
-
demag lens
-
dielectric lens
-
diffusion lens
-
diopter lens
-
distortion lens
-
divergent lens
-
divergent-meniscus lens
-
diverging lens
-
double-concave lens
-
double-convex lens
-
double-focus lens
-
dual lens
-
dwarf-signal lens
-
echelon lens
-
electromagnetic lens
-
electronic lens
-
electron lens
-
electrostatic lens
-
enlarging lens
-
equiconcave lens
-
equiconvex lens
-
erector lens
-
expander lens
-
exposure lens
-
eyepiece lens
-
eye lens
-
fast lens
-
fiber lens
-
field lens
-
fisheye lens
-
fixed-focus lens
-
floating-component lens
-
floating lens
-
fly's-eye lens
-
Fourier transform lens
-
fresh-water lens
-
Fresnel lens
-
gas lens
-
geodesic lens
-
gradient-index lens
-
gradient-index rod lens
-
grating lens
-
high-resolution lens
-
high-speed lens
-
holographic lens
-
horn lens
-
image stabilizing lens
-
image-forming lens
-
immersion lens
-
interchangeable lens
-
laminated lens
-
large aperture ratio lens
-
large aperture lens
-
lattice lens
-
lens of material
-
lenticular lens
-
light-signal lens
-
linear Fresnel lens
-
liquid lens
-
long-focal-length lens
-
Luneberg lens
-
macro lens
-
magnetic lens
-
magnifying lens
-
meniscus lens
-
mirror lens
-
motion-picture camera lens
-
motion-picture projector lens
-
negative lens
-
normal-angle lens
-
normal lens
-
objective lens
-
overlay lens
-
pancratic lens
-
panoramic lens
-
path-length lens
-
photochromic lens
-
plano-concave lens
-
plano-convex lens
-
positive lens
-
process lens
-
projection lens
-
reconstructing lens
-
reduction lens
-
reference lens
-
relay lens
-
replica corrector lens
-
reproduction lens
-
retrofocus lens
-
rod lens
-
roof lens
-
rotationally symmetric lens
-
short-focal-length lens
-
silicone-glass Fresnel lens
-
soft-focus lens
-
spectacle lens
-
spherical lens
-
squeeze lens
-
stabilized lens
-
standard lens
-
stepped lens
-
stippled lens
-
stopped-down lens
-
studio/field zoom lens
-
supplementary lens
-
taking lens
-
telenegative lens
-
telephoto lens
-
telescopic lenses
-
thermal lens
-
transforming lens
-
two-dimensional lens
-
two-stage linear Fresnel lens
-
two-tube electrostatic lens
-
variable magnification zoom lens
-
variable-focal-length lens
-
varifocal lens
-
waveguide lens
-
wide-angle lens
-
zoned lens
-
zoom lens -
65 analysis
1) анализ2) исследование, изучение4) расчет ( обычно проверочный)5) состав6) теория•-
activation analysis
-
algorithmic analysis
-
amino acid analysis
-
approximate analysis
-
Auger-electron analysis
-
backward analysis
-
base ratio analysis
-
behavioral analysis
-
bending analysis
-
bottom-up analysis
-
boundary-element analysis
-
brittle coating analysis
-
buckling analysis
-
bulk analysis
-
carbon group analysis
-
cepstral analysis
-
chemical analysis
-
chromatographic analysis
-
circuit analysis
-
circuit malfunotion analysis
-
closed boundary analysis
-
clustering analysis
-
cluster analysis
-
coal-sizing analysis
-
combustion analysis
-
comfirmatory analysis
-
comparative analysis
-
compensation analysis
-
component analysis of casing head gas
-
computer aided analysis
-
core analysis
-
correlation analysis
-
coupled-mode analysis
-
covariance analysis
-
criticality analysis
-
cross correlation analysis
-
cross-field analysis
-
cryoscopic analysis
-
crystal analysis
-
cylindrical mirror Auger analysis
-
data analysis
-
depth-area-duration analysis
-
destructive analysis
-
diagnostic analysis
-
differential thermal analysis
-
diffraction analysis
-
dilatometric analysis
-
discourse analysis
-
discriminant analysis
-
dispersion analysis
-
distortion analysis
-
dynamic force analysis
-
ecological analysis
-
economic analysis
-
elastic-plastic stress analysis
-
electron diffraction analysis
-
electron microprobe analysis
-
electron probe analysis
-
emission analysis
-
end-point analysis
-
energy-dispersive analysis
-
environmental analysis
-
error analysis
-
event-sequence analysis
-
extinction analysis
-
factor analysis
-
failure analysis
-
failure cause analysis
-
fast neutron activation analysis
-
field analysis
-
fine-mesh analysis
-
fingerprint analysis
-
finite-element analysis
-
float-and-sink analysis
-
fluorescence analysis
-
formation damage analysis
-
four-dimensional analysis
-
Fourier analysis
-
fractional analysis
-
frequency analysis
-
frequency-domain analysis
-
frequency-response analysis
-
frontal analysis
-
fuel analysis
-
gamma-ray analysis
-
gradation analysis of soil
-
grading analysis
-
gravimetric analysis
-
grid-point analysis
-
group analysis
-
harmonic analysis
-
Hempel analysis
-
heteroduplex analysis
-
hot-extraction gas analysis
-
hydrograph analysis
-
immunoblot analysis
-
infrared analysis
-
Interactive analysis
-
interactive image analysis
-
ion microprobe mass analysis
-
ladle analysis
-
large-sample analysis
-
least-square analysis
-
limit state analysis
-
linear analysis
-
logical analysis
-
logic analysis
-
magnetometric analysis
-
malfunction analysis
-
market analysis
-
mass spectrographic analysis
-
mass spectrometric analysis
-
mathematical analysis
-
matrix analysis
-
measure analysis
-
mechanical analysis
-
mesh analysis
-
microprobe analysis
-
microprobe-inclusion analysis
-
microscopical analysis
-
microstructure analysis
-
mobility-shift analysis
-
modal analysis
-
model-based analysis
-
model analysis
-
moire stress analysis
-
molecular spectrum analysis
-
multilevel analysis
-
multivariate analysis
-
NDT analysis
-
nearest neighbor analysis
-
nephelometric analysis
-
network analysis
-
neutron diffraction analysis
-
nodal analysis
-
noise analysis
-
nondestructive test analysis
-
noninvasive analysis
-
numerical analysis
-
observational analysis
-
octave analysis
-
oil type analysis
-
on-line analysis
-
operations analysis
-
opticospectral analysis
-
parametric analysis
-
particle-size analysis
-
periodogram analysis
-
perturbation analysis
-
petrographic analysis
-
phase shift analysis of the scattering
-
phase-plane analysis
-
photoelastic-coating analysis
-
photoelasticity analysis
-
polarographic analysis
-
pore-size analysis
-
postaccident criticality analysis
-
posttest analysis
-
predictive analysis
-
pretest analysis
-
probit analysis
-
proximate analysis
-
qualitative analysis
-
quantitative analysis
-
radioactive tracer analysis
-
radiographic analysis
-
RAM analysis
-
rapid analysis
-
real-time analysis
-
regression analysis
-
release analysis
-
reliability analysis
-
reliability availability maintainability analysis
-
revolving field analysis
-
ring analysis
-
Rutherford scattering analysis
-
safety transit analysis
-
sample analysis
-
sampling analysis
-
scale analysis
-
screen analysis
-
sea-level analysis
-
sedimentation analysis
-
shear analysis
-
sieve analysis
-
signature analysis
-
simulated network analysis
-
single burst analysis
-
slag analysis
-
small signal analysis
-
solar resource analysis
-
spatial frequency analysis
-
spectral analysis
-
spectrophotometric analysis
-
speculative analysis
-
spot test analysis
-
stack-gas analysis
-
standing wave analysis
-
statistical analysis
-
stiffness analysis
-
strain-gage analysis
-
strength analysis
-
stress analysis
-
structural analysis
-
subsynoptic-scale analysis
-
symbolic analysis
-
syntactic analysis
-
systems analysis
-
system analysis
-
tapping analysis
-
temporal pulse analysis
-
tensor analysis
-
test sieve analysis
-
thermal analysis
-
thermoeconomic analysis
-
thermographic analysis
-
thermogravimetric analysis
-
thermomagneto-gravimetric analysis
-
three-dimensional analysis
-
time series analysis
-
timing analysis
-
top-down analysis
-
trace analysis
-
transient analysis
-
triangular hydrograph analysis
-
ultimate analysis
-
upper-level analysis
-
variance analysis
-
vault-pathways analysis
-
vector analysis
-
wandering spot analysis
-
water analysis
-
wave analysis
-
weather analysis
-
wet analysis
-
worst-case analysis
-
X-ray absorption analysis
-
X-ray analysis
-
X-ray crystal analysis
-
X-ray dispersive analysis
-
X-ray emission analysis
-
X-ray image analysis
-
X-ray spectrum analysis
-
X-ray structure analysis
-
Zuber's hydrodynamic analysis
См. также в других словарях:
Signal-to-noise ratio — For signal to noise ratio in statistics, see Cohen s d. Signal to noise ratio (often abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined… … Wikipedia
Signal-to-interference ratio — The signal to interference ratio (S/I or SIR), also known as the carrier to interference ratio ( C/I , CIR), is the quotient between the average received modulated carrier power S or C and the average received co channel interference power I ,… … Wikipedia
Distortion — This article is about technology, especially electrical engineering. For other uses, see Distortion (disambiguation). Distort redirects here. For other uses, see Distort (disambiguation). A distortion is the alteration of the original shape (or… … Wikipedia
Signal transfer function — The signal transfer function (SiTF) is a measure of the signal output versus the signal input of a system such as an infrared system or sensor. [cite book | title = The Optical Transfer Function of Imaging Systems | author = Tom L. Williams |… … Wikipedia
Signal reflection — occurs when a signal is transmitted along a transmission medium, such as a copper cable or an optical fiber, some of the signal power may be reflected back to its origin rather than being carried all the way along the cable to the far end. This… … Wikipedia
Contrast-to-noise ratio — Haze over Kuala Lumpur. Contrast to noise ratio (CNR) is a measure used to determine image quality. CNR is similar to the metric, signal to noise ratio (SNR), but subtracts off a term before taking the ratio. This is important when there is a… … Wikipedia
Carrier-to-noise ratio — In telecommunications, the carrier to noise ratio, often written CNR or C/N , is the signal to noise ratio (SNR) of a modulated signal. The CNR is the quotient between the average received modulated carrier power C and the average received noise… … Wikipedia
Modulation error ratio — The modulation error ratio or MER is a measure used to quantify the performance of a digital radio transmitter or receiver in a communications system using digital modulation (such as QAM). A signal sent by an ideal transmitter or received by a… … Wikipedia
Quantization (signal processing) — In digital signal processing, quantization is the process of approximating a continuous range of values (or a very large set of possible discrete values) by a relatively small set of discrete symbols or integer values.More specifically, a signal… … Wikipedia
Quasi-analog signal — In telecommunication, a quasi analog signal is a digital signal that has been converted to a form suitable for transmission over a specified analog channel. Note: The specification of the analog channel should include frequency range, bandwidth,… … Wikipedia
Sampling (signal processing) — Signal sampling representation. The continuous signal is represented with a green color whereas the discrete samples are in blue. In signal processing, sampling is the reduction of a continuous signal to a discrete signal. A common example is the … Wikipedia