1. The recovery of information from an electrical or electromagnetic signal.
Note: Conventional radio waves are usually detected by heterodyning, i.e., coherent reception/detection. In this method of reception/detection, the received signal is mixed, in some type of nonlinear device, with a signal from a local oscillator, to produce an intermediate frequency, i.e., beat frequency, from which the modulating signal is… (Read More →)

The reciprocal of noise equivalent power.

1. A device that is responsive to the presence or absence of a stimulus.
2. In an AM radio receiver, a circuit or device that recovers the signal of interest from the modulated wave.
Note: In FM reception, a circuit called a discriminator is used to convert frequency variations to amplitude variations.
3. In an optical communications receiver, a device… (Read More →)

1. In a switched network, switching in which the routes between given pairs of nodes are pre-programmed, i.e., are determined, in advance of transmission.
Note: The routes used to complete a given call through a network are identified, in advance of transmission, in routing tables maintained in each switch database. The tables assign the trunks that are to be used… (Read More →)

An asynchronous transfer mode in which the maximum information transfer capacity of a telecommunication service is provided throughout a call.

Germany's standards-setting organization, equivalent to the American National Standards Institute (ANSI).

The person or organization that manufacturers a Target of Evaluation [ITSEC].

The physical, procedural and personnel security controls imposed by a developer on his Development Environment [ITSEC].

1. The set of procedures, methods, tools and standards used during system development. See also: Operational Environment [CESG].
2. The organizational measures, procedures and standards used whilst constructing a Target of Evaluation [ITSEC].

The set of phases and tasks whereby a Target of Evaluation is constructed, translating requirements into actual hardware and software [ITSEC].