TERMIUM Plus®

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FREQUENCY HOPPING [1 record]

Record 1 2021-08-04

English

Subject field(s)
  • Electronic Warfare
  • Counter-Measures (Military operations)
  • Signals (Military)
DEF

An electronic counter-countermeasure (ECCM) technique in which the instantaneous carrier frequency of a signal is periodically relocated, according to a predetermined code, to other positions within a frequency spectrum much wider than required for normal message transmission.

OBS

The receiver uses the same code to keep itself in synchronism with the hopping pattern.

OBS

frequency hopping: designation and definition standardized by Federal Standard - 1037, 1980 (USA) - Glossary of Telecommunication Terms.

OBS

frequency hopping; FH: designations standardized by NATO.

French

Domaine(s)
  • Guerre électronique
  • Contre-mesures (Opérations militaires)
  • Transmissions de campagne (Militaire)
DEF

Technique utilisée en radiocommunication militaire pour éviter l'interception et le brouillage des transmissions radioélectriques en milieu hostile.

OBS

Il s'agit d'un dispositif qui provoque des sauts périodiques de la fréquence porteuse d'un émetteur sur une large bande du spectre selon un programme préétabli. Seul le récepteur muni du même programme est en mesure de suivre l'évolution d'une transmission.

DEF

saut de fréquence; SF : désignations normalisées par l'OTAN.

Spanish

Campo(s) temático(s)
  • Guerra electrónica
  • Contramedidas (Operaciones militares)
  • Transmisiones de campaña (Militar)
DEF

Técnica de transmisión en la que la frecuencia portadora salta o cambia de valor periodicamente dentro de un espectro de frecuencias mucho más amplio que el requerido para la transmisión normal de los mensajes, de acuerdo con un código predeterminado que usan emisor y receptor.

OBS

Esta técnica tiene un origen militar y se desarrolló para evitar el espionaje de las comunicaciones; actualmente se utiliza en el sistema GSM (Sistema Global de Comunicaciones Móviles).

Key term(s)
  • saltos de frecuencia
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