Acronym for long-range radio navigation. A long-range radio navigation position-fixing system consisting of an array of fixed stations that transmit precisely synchronized signals to mobile receivers.
Note: A loran receiver measures differences in the times of arrival of the signals from the various stations. A fixed difference in the time of arrival of the signals from any two stations will… (Read More →)

A long distance radionavigation land station transmitting synchronized pulses. Hyperbolic lines of position are determined by the measurement of the difference in the time of arrival of these pulses. [NTIA]

Abbreviation for line of sight. See line-of-sight propagation.

1. The diminution, usually expressed in dB, of signal level in a communications medium.
2. The power, usually expressed in watts, consumed or dissipated by a circuit or component without accomplishing useful work or purpose; e.g., heating (hysteresis loss) that occurs in the core of a transformer.
3. In computer security, a quantitative measure of harm or deprivation resulting from… (Read More →)

The term "Loss Deviation" denotes the variation of the actual loss from the designed value.

1. In the storage of digital data, reduction, by the use of one or more appropriate algorithms, of the amount of data to be stored, in such a manner that the original data may be recovered precisely; i.e., in the exact original form.
Note: The actual algorithm(s) applied to a given set of data may depend on the application (and… (Read More →)

1. In video and multimedia, bit-rate reduction of an image signal by powerful algorithms that compress beyond what is achievable in lossless compression or in quasi-lossless compression.
Note: Lossy compression accepts loss of information and introduction of artifacts that can be ignored as unimportant when viewed in direct comparison with the original. Lossy compression takes advantage of the subtended viewing… (Read More →)

A medium in which a significant amount of the energy of a propagating electromagnetic wave is absorbed per unit distance traveled by the wave. [After 2196]

A block not delivered to the user within a specified maximum end-to-end block transfer time.

A call that has not been completed for any reason other than cases where the call receiver (termination) is busy.