1. A number selected from a known set of numbers in such a way that each number in the set has the same probability of occurrence.
2. A number obtained by chance.
3. One of a sequence of numbers considered appropriate for satisfying certain statistical tests or believed to be free from conditions that might bias the result of a… (Read More →)

1. A device used to invert the sense of pseudorandomly selected bits of a bit stream to avoid long sequences of bits of the same sense.
Note: The same selection pattern must be used on the receive terminal in order to restore the original bit stream.
2. [An] analog or digital source of unpredictable, unbiased, and usually independent bits. Randomizers… (Read More →)

See radio range.

The measurement of the distance to a remote object (target), from a known observation or reference point.
Note: Ranging may be accomplished by geometric means, e.g., triangulation, or by the measurement of the transit time of an electromagnetic or acoustic signal. Ranging has application to navigation and cartography.

A predetermined pattern of scanning lines within a display space.
Note: An example of a raster is the pattern followed by an electron beam scanning the screen of a television camera or receiver.

The total number of raster scanning lines within a display space. [From Weik '89]

In display systems, the number of scanning lines per unit distance perpendicular to the scanning direction. [From Weik '89]

Synonym [loosely] bitmapped graphics.

Scanning in which the motion of the scanning spot follows a raster.

These measurements can be used with the tariffs in the message rating processes. Rate Center is used for numbering resource applications and reports to associate telephone numbers with a geographic area, as defined by the relevant regulatory agency.