- Industry: Telecommunications
- Number of terms: 29235
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The rate of flow of radiant energy. Note: Luminous flux is expressed in lumens (cd sr. )
Industry:Telecommunications
The rate of flow of electromagnetic energy, i.e., radiant energy. Note 1: Radiant power is usually expressed in watts, i.e., joules per second. Note 2: The modifier is often dropped and "power" is used to mean "radiant power". Deprecated synonyms flux, radiant flux.
Industry:Telecommunications
The rate of encoding. 2. In direct-sequence-modulation spread-spectrum systems, the rate at which the information signal bits are transmitted as a pseudorandom sequence of chips. Note: The chip rate is usually several times the information bit rate.
Industry:Telecommunications
The rate of diminution of average power with respect to distance along a transmission path. Note: The attenuation coefficient is often calculated as the sum of the absorption coefficient and the scattering coefficient. Synonym attenuation rate.
Industry:Telecommunications
The rate of change of the total phase shift with respect to angular frequency, d/d, through a device or transmission medium, where is the total phase shift, and is the angular frequency equal to 2f, where f is the frequency. 2. In an optical fiber, the transit time required for optical power, traveling at a given mode's group velocity, to travel a given distance. Note: For optical fiber dispersion measurement purposes, the quantity of interest is group delay per unit length, which is the reciprocal of the group velocity of a particular mode. The measured group delay of a signal through an optical fiber exhibits a wavelength dependence due to the various dispersion mechanisms present in the fiber.
Industry:Telecommunications
The rate at which stuffing bits are inserted when both the input and output bit rates are at their nominal values.
Industry:Telecommunications
The rate at which information is processed by a transmission facility. Note 1: The effective transmission rate is calculated as (a) the measured number of units of data, such as bits, characters, blocks, or frames, transmitted during a significant measurement time interval divided by (b) the measurement time interval. Note 2: The effective transmission rate is usually expressed as a number of units of data per unit time, such as bits per second or characters per second. Synonyms average rate of transmission, effective speed of transmission.
Industry:Telecommunications
The rate at which a clock issues timing pulses. Note: Clock rates are usually expressed in pulses per second, such as 4. 96 Mp/s (megapulses per second. )
Industry:Telecommunications
The rate at which a carrier is varied to represent the information in a digital signal. Note: Modulation rate and information transfer rate are not necessarily the same. 2. For modulated digital signals, the reciprocal of the unit interval of the modulated signal, measured in seconds.
Industry:Telecommunications
The rapid, spontaneous transfer of electrostatic charge induced by a high electrostatic field. Usually the charge flows through a spark (static discharge) between two bodies at different electrostatic potentials as they approach one another.
Industry:Telecommunications
