TERMIUM Plus®

From: Translation Bureau

On social media

Consult the Government of Canada’s terminology data bank.

IMPEDANCIA FUENTE [2 records]

Record 1 2003-03-07

English

Subject field(s)
  • Radio Transmission and Reception
  • Radio Interference
DEF

A ratio of the output noise power of a device to the portion thereof attributable to thermal noise in the input termination at standard noise temperature (usually 290 K).

OBS

The noise figure is thus the ratio of actual output noise to that which would remain if the device itself did not introduce noise.

French

Domaine(s)
  • Émission et réception radio
  • Perturbations radio
DEF

Taux de bruit ou de dégradation du rapport signal/bruit créé par le convertisseur, lors de la réception des signaux, ou par tout autre système (amplificateur, etc.).

OBS

Il est exprimé en Kelvin pour les signaux de la bande C et en décibel pour la bande KU.

Key term(s)
  • facteur de bruit d'un récepteur radioélectrique

Spanish

Campo(s) temático(s)
  • Radiotransmisión y radiorrecepción
  • Perturbaciones radioeléctricas
DEF

Relación de la potencia de ruido de un receptor de radio, supuestamente lineal, y la potencia de ruido que se encontraría en la salida del receptor si no hubiera en el receptor ninguna otra fuente de ruido diferente de las que existen en la impedancia externa conectada a la entrada, supuestamente a una temperatura específica, por ejemplo, 300 Kelvin.

Save record 1

Record 2 2002-02-22

English

Subject field(s)
  • Electronic Circuits Technology
  • Information Processing (Informatics)
DEF

Impedance presented by a source of energy to the input terminals of a device.

OBS

electrical impedance. Also known as impedance: the total opposition that a circuit presents to an alternating current, equal to the complex ratio of the voltage to the current in complex notation.

French

Domaine(s)
  • Technologie des circuits électroniques
  • Traitement de l'information (Informatique)

Spanish

Campo(s) temático(s)
  • Tecnología de los circuitos electrónicos
  • Tratamiento de la información (Informática)
DEF

Impedancia presentada a la entrada de un dispositivo.

Save record 2

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Features

GCtranslate (available on the Government of Canada network only)

Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: