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C-band
| CCTV glossary (глоссарий терминов по видеонаблюдению) |
- A range of microwave frequencies, 3.7~4.2 ghz, commonly used for satellite
- A category of satellite transmissions which transmit from earth at 4.0 to 6.0 ghz and receive from the satellite at between 3.7 and 4.2 ghz which are also shared with terrestrial line-of-sight microwave users. this band of transmissions has less path loss than the other standard used for satellites (ku-band) but must have a large antenna for the same receiver input power level due to its use of longer wavelength frequencies. other problems relating to the use of include the shared use of these frequencies with terrestrial microwave transmission which cause interference with the weaker satellite signals in certain areas.
- A range of microwave frequencies, 3.7~4.2 ghz, commonly used for satellite communications.
- The is the “conventional” dwdm transmission band, occupying the 1530 to 1565 nm wavelength range, as specified by the itu-t g.692. most edfas operate in the
- Wavelengths of about 1530 to 1565 nm, where erbium-doped fiber amplifiers have their strongest gain. normally erbium-fiber amplifiers operate in either c- or l-band. the wavelength range between 1530 nm and 1562 nm used in some cwdm and dwdm applications.
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Terrestrial, английский
Living on land, as opposed to marine or aquatic.
Satellites, латинский
Wavelength, английский
- Light is made up of electromagnetic waves; wavelength is the crest (peak)-to-crest distance between two adjacent waves.
- Для оптических сетевых устройств длина волны светового потока составляет 850, 1300, 1310 и 1550 нм
- The optical term for frequency. fiber optics generally uses the 850 nm, 1300/1310 nm, 1550 nm and 1625 nm wavelengths for transmission purpose due to the marriage of performance with light sources, optical fibers, and optical detector technologies
- Distance in the direction of propagation of a periodic wave between two successive points at which the phase is the same. tel 203•377•8282 fax 203•378•2457 e-mail res_sales@oriel.com url www.oriel.com 9-17 polarization lenses optics prisms & filters beam splitters windows, substrates & mirrors properties of optical coatings optical materials
- The length of the light wave, usually measured from crest to crest, which determines its color. common units of measurement are the micrometer (micron), the nanometer, and the angstrom unit.
- The spatial period of a plane wave
- The distance between "waves" in the electromagnetic field, specified as angstroms or nanometers.
- The distance an electromagnetic wave travels in the time it takes to oscillate through a complete cycle. wavelengths of light are measured in nanometers (10-9 m) or micrometers (10-6m).
- The linear distance occupied by one complete cycle of vibration of an energy form from any given point to the next point characterized by the same phase.
- For light waves or sound waves, the distance between two successive points of a periodic wave in the direction of propagation, in which the oscillation has the same phase; the distance the wave travels in one period. for light waves three common units of wavelength are: micrometer, nanometer, and angstrom. wave molding, oundy molding, swelled chamfer, undulating molding, undy
- Длина волны wax 1. воск 2. парафин 3. пластичная глина way 1. путь; дорога 2. проход; переход 3. колея 4. направление, сторона 5. амер, расстояние
- The physical length between corresponding points of successive cycles of a wave. low frequencies have long wavelengths; high frequencies have short wavelengths.
- The distance between the crests of a wave in a radio signal, measured as the speed of light divided by the frequency in- hz.
- The distance between one peak of a wave and the next peak
- Light is measured by its wavelength (in nanometers) or frequency (in hertz). one wavelength. equals the distance between two successive wave crests.
- The distance between two points having the same phase in two consecutive cycles of a periodic wave, along a line in the direction of propagation.
- Distance between repeating values of a wave — for example, the distance from one peak to the next peak on a sine wave. wavelength is a fundamental descriptor when discussing wave behavior, system sensitivity, and diffraction effects.
- Distance between repeating values of a wave. for example, the distance from one peak to the next peak on a sine wave.
- Distance between repeating values of a wave. for example, the distance from one peak to the next peak on a sine wave. wavelength is generally measured in nanometers when considering uv-a radiation (for example, 365 nm). compare frequency.
- Distance between repeating units of a wave. for example, the distance from one peak to the next peak.
- Distance needed in the propagation direction for a wave to go through a complete cycle.7,21
Transmission, английский
- Passage of electromagnetic radiation through a medium.
- Transmisión
- The property in a merchantman, or a share therein, transmitted in
- Передача; привод; коробка передач; трансмиссия; прохождение; распространение ~ of loads передача нагрузок
- The transport of high voltage electricity. this is achieved with a transmission network (or grid). generally the network will connect large generators to lower voltage distribution networks where it will be transported to the majority of electricity consumers. alternatively, large scale electricity users may connect directly to the transmission network. management of transmission is a natural monopoly due to the economies of scale inherent to it. transmission system operator (tso) (also transmission network operator-
- The sending of information over a communications line or a circuit.
- The transportation of electric energy in bulk from a source or sources of supply to other systems or parts of a single system.
- Transfer of pathogens from one host to another
Interference, английский
- Effect caused by the introduction of unwanted electrical signals into an electrical circuit. in cctv this results in "noise" in the signal or picture, which disrupts the picture.
- Extraneous energy which tends to interfere with the reception of the desired signals.
- Disturbances of an electrical or electromagnetic nature that introduce undesirable
- “artifactual increase or decrease in apparent concentration or intensity of an analyte due to the presence of a substance that reacts nonspecifically with either the detecting reagent or the signal itself.” [clsi]
- Signal
- Столкновение прав (заявляемых или патентных); приоритетный спор
- A scrambling of the content of signals by the reception of desired signals.
- Disturbances of an electrical or electromagnetic nature that introduce undesirable responses in other electronic equipment.
- A range of phenomena associated with the superposition of waves
- For light, the way that waves add together, depending on their phase. constructive interference occurs when the waves are in phase and their amplitudes add. destructive interference occurs when the waves are 180 degree out of phase and their amplitudes cancel.
- N интерференция interfix n интерфикс
- The static and other noises sometimes heard over the phone line.
- Столкновение одновременно заявляемых прав на патент
- Distortion of a light wave due to interaction with another wave
- A proceeding, conducted before the patent trial and appeal board, to determine priority of invention between a pending application and one or more pending applications and/or one or more unexpired patents under pre-aia u.s. patent law.
- A proceeding conducted before the board of patent appeals and interferences to determine the priority of invention between a pending application and one or more pending applications and one or more unexpired patents.
- The negative effect of a learners first language(s) on the learning of a target language.
- Помехи, наводки
Communications, английский
- Средства связи; связь 158
- Средства связи; связь
- [1] general: the transfer of information according to agreed conventions. [2] information technology; the representation, transfer, interpretation, and processing of data between and
- Связь; система связи; коммуникации; пути сообщения
Conventional, английский
- Обычный (об оружии)
- Обычный (напр. об оружии)
- A конвенциональный3; узуальный metaphor, norm
- Обычный; общепринятый; стандартный
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Liquid crystal display (lcd), английский
- A screen for displaying text/graphics based on a technology called
- A screen for displaying text/graphics based on a technology called liquid crystal, where minute currents change the reflectiveness or transparency of the screen. the advantages of lcd screens are very small power consumption (can be easily battery driven) and low price of mass-produced units. the disadvantages are narrow viewing angle, slow response (a bit too slow to be used for video), invisibility in the dark unless the display is back lighted, and difficulties displaying true colors with color lcd displays.
Anti-aliasing, английский
- A procedure employed to eliminate or reduce (by smoothing and filtering) the
- The process of reducing stair-stepping by smoothing edges where individual pixels are visible.
- A procedure employed to eliminate or reduce (by smoothing and filtering) the aliasing effects.
- A software technique for smoothing the jagged appearance of curved or diagonal lines caused by poor resolution on a display screen. methods of anti-aliasing include surrounding pixels with intermediate shades and manipulating the size and horizontal alignment of the pixels.
- Сглаживание, защита от наложения спектров. процедура исключения или снижения (путем сглаживания и фильтрации) искажающих эффектов.
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