|
|
|
|
|
|
|
|
|
Полоса пропускания (пропускная способность)
| Глоссарий по телекоммуникациям |
|
Bandwidth, английский
- The frequency range required to carry an electronic signal without attenuation or loss.
- Полоса частот, пропускная способность. количественное выражение способности канала передавать информацию. для аналоговых каналов
- Диапазон частот сигналов, пропускаемых каналом связи. определяется как разность между самой высокой и самой низкой частотами. измеряется в герцах (гц). если канал используется для передачи цифровых данных, его пропускная способность часто выражается число
- Ширина полосы, полоса
- Разность между максимальной и минимальной частотой в заданном диапазоне. измеряется в гц
- The number of cycles per second (hertz) expressing the difference between the lower and upper limiting frequencies of a frequency band; also, the width of a band of frequencies.
- Bandwidth is defined as either channel capacity or maximum throughput on your network.
- The complete range of frequencies over which a circuit or electronic system can
- Ширина полосы (частот)
- Determines the rate at which information can be transmitted across that a medium. the rates are measured in bits (bps), kilobits (kbps), megabits (mbps), or gigabits per second (gbps). typical transmission services are 64 kbps, 1.544 mbps (t1), and 45 mbps (t3). the space between the top and bottom limit of airwave frequencies that are transmitted over a communications channel. the maximum frequency (range), measured in hertz, between the two limiting frequencies of a transmission channel; the range of frequencies that can be carried by a transmission medium without undue distortion. narrowband uses lower frequency signals such as telephone frequencies of about 3,000 hertz and radio subcarrier signals of about 15,000 hertz. broadband uses a wide range of frequencies (broadcast and cable tv, microwave and satellite; carries a great deal of information in a short time; more expensive to use. c band is in the 4 to 6 giga-hertz (ghz) ku band is 12 and 14 ghz .14.0 and 14.5 ghz are used to uplink; 11.7 and 12.2 ghz are used to downlink. a receiver with dual band capability can receive c and ku band signals.
- The complete range of frequencies over which a circuit or electronic system can function with minimal signal loss, usually measured to the point of less than 3 db. in pal systems the bandwidth limits the maximum visible frequency to 5.5 mhz, in ntsc to 4.2 mhz. the itu 601 luminance channel sampling frequency of 13.5 mhz was chosen to permit faithful digital representation of the pal and ntsc luminance bandwidths without aliasing.
- A measure of the maximum frequency by which light intensity can be modulated before the signal experiences 3 db of excess attenuation. the difference between the highest and the lowest frequencies of a transmission channel or path; identifies the amount of data that can be sent through a given channel. the greater the bandwidth, the greater the information carrying capacity. multimode fiber bandwidth is expressed in megahertz per kilometer (mhz-km)
- The range of wavelengths over which an optical system is designed to function.
- The width of some frequency or wavelength range
- The highest frequency that can be transmitted by an analog system.. also, the information-carrying capacity of a system (especially for digital systems). the range of frequencies within which a fiber optic waveguide or terminal device can transmit data or information.
- Ширина полосы частот
- A measure of total amount of data transferred over a period of time, often used to measure how busy a website is. a- webhostwill usually base its charges on the bandwidth a website uses, ie how much data per month is requested- from it.
- In analog communications, the difference between the highest and lowest frequencies in a specific range. for example, an analog telephone line accommodates a bandwidth of 3,000 hertz (hz), the difference between the lowest (300 hz) and highest (3,300 hz)
- The data transfer capacity, or speed of transmission, of a digital communications system as measured in bits per second (bps).
- Refers to the volume of information that can be transmitted or processed. it is usually measured in bits or bytes per time unit like its per second". 1
- Пропускная способность, т.е. объем информации, который может пройти через систему в единицу времени. применительно к подсистеме памяти
- The capacity of a telecommunications line to carry signals.
- Полоса пропускания. полный диапазон частот функционирования схемы или электронной системы с минимальными потерями сигнала, обычно измеряемый по уровню 3 дб. в pal-системах максимальная частота полосы пропускания составляет 5,5 мгц, в ntsc
- The range of a band of different frequencies; the number of hertz between the maximum frequency of the range and the minimum frequency of the range, usually measured between points of equal and stated amplitude levels.
- Difference between the cutoff frequencies of a bandpass filter.
- Разница между частотами среза полосового фильтра.
|
|
Ассоциация за прогрессивные телекоммуникации, русский
Передача данных с промежуточным накоплением, русский
|
|
|
|
|
|
|
