Fr.: signal électromagnétique
Information transmitted by means of a modulated current or an electromagnetic wave and received by telephone, radio, television, etc.
→ electromagnetic; → signal.
Fr.: signal radio
A signal in the → radio frequency region of the → electromagnetic spectrum.
nešâl-e anjâl, ~ anjaalesh
Fr.: signal de saturation, ~ saturé
In radar, a signal whose amplitude is greater than the dynamic range of the receiving system.
→ saturation; → signal.
1) Useful part of the received information that can be distinguished from noise.
M.E., from O.Fr. signal, from M.L. signale "a signal," from L.L. signalis (adj.) "used as a signal, pertaining to a sign," from L. signum "signal, sign."
Fr.: rapport signal sur bruit
Concept used to quantify the effects of noise. It is the ratio of a signal to the standard deviation of the signal.
Fr.: seuil de signal
The minimum intensity of a signal that can be detected and recognized.