- Industry: Telecommunications
- Number of terms: 29235
- Number of blossaries: 0
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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 time interval or phase difference between transmission and reception of a signal. 2. The total time between the instant a bit enters the network and the instant a corresponding bit exists the network.
Industry:Telecommunications
The total transit delay applicable for a data call obtained by summing the individual transit delays of all component portions of the data connection.
Industry:Telecommunications
The shaping of the radiation pattern in the vertical plane of a transmitting antenna by electrical means so that maximum radiation occurs at an angle below the horizontal plane.
Industry:Telecommunications
The totality of worldwide infrastructure elements that combine the three industry sectors of (a) telecommunications, (b) computer (information) technology, and (c) consumer electronics to extend the capabilities of the NII (national information infrastructure) worldwide.
Industry:Telecommunications
To remove a residual magnetic field from a magnetized object, usually by introducing much stronger and gradually diminishing magnetic fields of alternating polarity. 2. Specifically, to erase information from a magnetic storage medium by degaussing.
Industry:Telecommunications
Video imagery that is not intended to convey the appearance of movement.
Industry:Telecommunications
The volume of space that is occupied by a radar pulse and that is determined by the pulse duration and the horizontal and vertical beamwidths of the transmitting radar. Note: The radar cannot distinguish between two separate objects that lie within the same resolution cell. The radar resolution cell depth (RCD) remains constant regardless of the distance from the transmitting antenna. It does not increase with range. The RCD is given by RCD = 150d, where the RCD is in meters and d is the pulse duration in microseconds. The height of the cell and the width of the cell do increase with range. These are given by W = (HBW) (R/57) and H = (VBW) (R/57,) where W is the width of the cell, HBW is the horizontal beamwidth in degrees, R is the range, H is the height of the cell, and VBW is the vertical beamwidth in degrees. The range, R, is the distance from the radar antenna to the reflecting object, i.e., the target. The width and height will come out in the same units in which the range is given. For example, if the range is given in meters, the width and height of the radar resolution cell will be in meters. The 57 merely converts degrees to radians. If the beamwidths are given in radian measure, the 57 is omitted.
Industry:Telecommunications
Unauthorized access to a data processing system via an authorized user's legitimate connection.
Industry:Telecommunications
The structure of a video signal wherein the luminance and two bandlimited color-difference signals are simultaneously present in the channel. Note: The format may be achieved by frequency-division multiplexing, quadrature modulation, etc. It is common to strive for integrity by suitable separation of the frequencies, or since scanned video signals are highly periodic, by choosing frequencies such that the chrominance information is interleaved within spectral regions of the luminance signal wherein a minimum of luminance information resides.
Industry:Telecommunications
The use of characters or signals for the automatic actuation of equipment or indicators.
Industry:Telecommunications
