- Industry: Telecommunications
- Number of terms: 29235
- Number of blossaries: 0
- Company Profile:
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 degree of electrical similarity of the two conductors of a transmission line. Note: A high degree of line balance reduces pickup of extraneous disturbances of all kinds, including crosstalk.
Industry:Telecommunications
The degree of conformity to a specified value of a frequency.
Industry:Telecommunications
The degree of conformity of a measured or calculated value to its actual or specified value.
Industry:Telecommunications
The deflection--by diffraction, nonhomogeneous refraction, or nonspecular reflection by particulate matter of dimensions that are large with respect to the wavelength in question but small with respect to the beam diameter--of a portion of an incident electromagnetic wave, in such a manner that the energy so deflected propagates in a direction that is within 90° of the direction of propagation of the incident wave. Note: The scattering process may be polarization-sensitive, i.e., incident waves that are identical in every respect but their polarization may be scattered differently.
Industry:Telecommunications
The definition of the basic security principles and policy for a community of interconnected systems thereby allowing a series of bilateral SISPs to be produced while preserving the security of the whole. . See also: System Interconnection Security policy.
Industry:Telecommunications
The definition of a periodic waveform of arbitrary shape as a summation of sine waves having specific amplitudes and phases, and having frequencies corresponding to the harmonics of the waveform being defined. Note: A Fourier analysis is particularly well suited for communications equipment design and for predicting the performance of a given design.
Industry:Telecommunications
The defining file format for exchange of digital motion-picture information on a variety of media between computer-based systems. Note: This flexible file format describes pixel-based (raster) images with attributes defined in the binary file descriptor—which identifies (a) generic file information, image information, data format, and image orientation information; (b) motion-picture and television industry-specific information; and (c) user defined information. The format assumes non real-time application, with accommodation for real-time to be considered as the developing technology permits.
Industry:Telecommunications
The definable perimeter encompassing all hardware, firmware, and software components performing critical COMSEC functions, such as key generation and key handling and storage.
Industry:Telecommunications
The decrease in power that occurs during transmission from one point to another. Note: Transmission loss is usually expressed in dB.
Industry:Telecommunications
The decrease in intensity of a signal, beam, or wave as a result of absorption of energy and of scattering out of the path to the detector, but not including the reduction due to geometric spreading. Note 1: Attenuation is usually expressed in dB. Note 2: "Attenuation" is often used as a misnomer for "attenuation coefficient," which is expressed in dB per kilometer. Note 3: A distinction must be made as to whether the attenuation is that of signal power or signal electric field strength.
Industry:Telecommunications
