- Industry: Telecommunications
- Number of terms: 29235
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ATIS is the leading technical planning and standards development organization committed to the rapid development of global, market-driven standards for the information, entertainment and communications industry.
The ratio of the number of lost blocks to the total number of block transfer attempts during a specified period.
Industry:Telecommunications
The ratio of the number of incorrectly received blocks to the total number of blocks transferred. Note: The block-error ratio is calculated using empirical measurements. Multiple block-error ratios may be used to predict block-error probability. 2. The ratio of the number of blocks that contain at least one bit in error to the total number of blocks transmitted in a given time interval.
Industry:Telecommunications
The ratio of the number of bits, unit elements, characters, or blocks incorrectly received and undetected, to the total number of bits, unit elements, characters, or blocks sent. Synonyms residual error rate, undetected error rate.
Industry:Telecommunications
The ratio of the number of bits, elements, characters, or blocks incorrectly received to the total number of bits, elements, characters, or blocks sent during a specified time interval. Note: For a given communication system, the bit error ratio will be affected by both the data transmission rate and the signal power margin.
Industry:Telecommunications
The ratio of the luminous flux or absorbed radiant flux to the incident flux.
Industry:Telecommunications
The ratio of the disturbing longitudinal source voltage, Vs, and the resultant metallic voltage, Vm, at the same frequency of the network under test, expressed in dB. The degree of balance between each conductor of a wire pair or equipment unit and ground is a measure of immunity to noise induced from external sources.
Industry:Telecommunications
The ratio of the common-mode interference voltage at the input of a circuit, to the corresponding interference voltage at the output.
Industry:Telecommunications
The ratio of the channel noise at any point in a transmission system to an arbitrary level chosen as a reference. Note 1: The channel noise level may be expressed in (a) dB above reference noise (dBrn,) (b) dB above reference noise with C-message weighting (dBrnC,) or (c) adjusted dB (dBa. ) Note 2: Each unit used to measure channel noise level reflects a circuit noise reading of a specialized instrument designed to account for different interference effects that occur under specified conditions. 2. The noise power density spectrum in the frequency range of interest. 3. The average noise power in the frequency range of interest.
Industry:Telecommunications
The ratio of the average load over a designated period of time to the peak load occurring during that period.
Industry:Telecommunications
The ratio of the amplitude of the reflected wave and the amplitude of the incident wave. 2. At a discontinuity in a transmission line, the complex ratio of the electric field strength of the reflected wave to that of the incident wave. Note 1: The reflection coefficient may also be established using other field or circuit quantities. Note 2: The reflection coefficient is given by where Z1 is the impedance toward the source, Z 2 is the impedance toward the load, the vertical bars designate absolute magnitude, and SWR is the standing wave ratio.
Industry:Telecommunications
