TERMIUM Plus®

From: Translation Bureau

On social media

Consult the Government of Canada’s terminology data bank.

FREQUENCY DOMAIN [11 records]

Record 1 2025-07-31

English

Subject field(s)
  • Electromagnetic Radiation
  • Radiation Protection
  • Radioelectricity
DEF

The frequency range, immediately outside the necessary bandwidth but excluding the spurious domain, in which out-of-band emissions generally predominate.

OBS

out-of-band domain: designation and definition standardized by NATO.

Key term(s)
  • out of band domain

French

Domaine(s)
  • Rayonnements électromagnétiques
  • Radioprotection
  • Radioélectricité
DEF

Gamme de fréquences, immédiatement en dehors de la largeur de bande nécessaire, mais excluant le domaine des rayonnements non essentiels, dans laquelle les émissions hors bande en général prédominent.

OBS

domaine des émissions hors bande : désignation et définition normalisées par l'OTAN.

Spanish

Save record 1

Record 2 2024-08-30

English

Subject field(s)
  • Informatics
  • Artificial Intelligence
CONT

Spectral anomalies occur when there is a deviation in the frequency domain.

French

Domaine(s)
  • Informatique
  • Intelligence artificielle

Spanish

Save record 2

Record 3 2023-12-14

English

Subject field(s)
  • Computer Mathematics
  • Computer Programs and Programming
  • Statistics
CONT

In order to model climate data time series that often contain periodic variations, trends, and sudden changes in mean(mean shifts, mostly artificial), this study proposes a hybrid‐domain(HD) algorithm, which incorporates a time domain test and a newly developed frequency domain test through an iterative procedure that is analogue to the well known backfitting algorithm.

Key term(s)
  • back-fitting algorithm

French

Domaine(s)
  • Mathématiques informatiques
  • Programmes et programmation (Informatique)
  • Statistique

Spanish

Save record 3

Record 4 2023-01-09

English

Subject field(s)
  • Radar, Radio Guidance and Goniometry
DEF

A pulsing radar that emits coherent waveforms, enabling it to detect and track targets in the frequency domain.

OBS

pulse Doppler radar: designation and definition officially approved by the Joint Terminology Panel.

Key term(s)
  • pulsed Doppler radar

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie
DEF

Radar à impulsion qui émet des ondes cohérentes, lui permettant de détecter et de poursuivre des cibles dans le domaine fréquentiel.

OBS

radar Doppler pulsé : désignation et définition uniformisées par le Groupe d'experts en terminologie interarmées.

Spanish

Campo(s) temático(s)
  • Guía radárica, radioguía y radiogoniometría
Save record 4

Record 5 2010-09-27

English

Subject field(s)
  • Scientific Research Methods
  • Optics
CONT

Temporal Paul wavelet analysis for instantaneous phase extraction using shadow moiré technique is proposed. Unlike the Morlet wavelet, the Paul wavelet has less restriction on the adjustment of wavelet parameters and can provide an optimal time and frequency resolution for a particular application by selecting the proper parameters. The Paul wavelet is a complex wavelet and is suitable for processing the temporal intensity data obtained from the shadow moiré technique for the phase retrieval. The proposed method can extract the phase information related to the state of the dynamic object at every instant in temporal domain. The phase information is associated to the displacement, three-dimensional(3D) surface-profile and the instantaneous state of the dynamic object. In addition, the instantaneous frequency of vibrating object can be obtained using the scale of the wavelet ridge by direct integration without temporal and spatial phase unwrapping. Thus the phase unwrapping error can be avoided. An experiment is conducted on the central loaded beam to demonstrate the validity of the proposed technique.

OBS

The term “moiré” is ... a French word referring to “an irregular wavy finish usually produced on a fabric by pressing between engraved rollers” (Webster’s 1981). In optics it refers to a beat pattern produced between two gratings of approximately equal spacing. It can be seen in everyday things such as the overlapping of two window screens, the rescreening of a half-tone picture, or with a striped shirt seen on television. The use of moiré for reduced sensitivity testing was introduced by Lord Rayleigh in 1874. Lord Rayleigh looked at the moiré between two identical gratings to determine their quality even though each individual grating could not be resolved under a microscope. ... Since Lord Rayleigh first noticed the phenomena of moiré fringes, moiré techniques have been used for a number of testing applications. Righi (1887) first noticed that the relative displacement of two gratings could be determined by observing the movement of the moiré fringes. The next significant advance in the use of moiré was presented by Weller and Shepherd (1948). They used moiré to measure the deformation of an object under applied stress by looking at the differences in a grating pattern before and after the applied stress. They were the first to use shadow moiré, where a grating is placed in front of a nonflat surface to determine the shape of the object behind it by using the shape of the moiré fringes.

French

Domaine(s)
  • Méthodes de recherche scientifique
  • Optique
CONT

Le moiré d’ombre. Cette technique […] consiste à créer un moiré entre une grille de référence placée juste devant l’objet, et l’ombre de cette même grille projetée sur la surface étudiée. Les déformations de cette surface modifient le pas du réseau «ombre» créant ainsi le moiré. Une mesure du pas de ce moiré permet, à l’aide des équations précédentes, de remont3er aux déformations locales et de dresser la carte des hauteurs.

CONT

Le moiré d’ombre. Il s’agit d’un dérivé (conceptuellement, pas historiquement) de la mesure de forme par projection de frange.

Spanish

Save record 5

Record 6 - external organization data 2009-08-04

English

Subject field(s)
  • Compartment - ISO/IEC JTC 1 Information Technology Vocabulary
Universal entry(ies)
01.02.14 (19762)
ISO/IEC standard entry number
DEF

[signal or noise] set of sinusoidal oscillations representing in the frequency domain a time-varying signal or noise, each oscillation being characterized by its frequency, its amplitude, and its initial phase

OBS

spectrum: term and definition standardized by ISO/IEC [ISO/IEC 19762-1:2008].

French

Spanish

Save record 6

Record 7 2003-11-07

English

Subject field(s)
  • Radio Transmission and Reception
DEF

Any emission whose fractional bandwidth is greater than 0.25 regardless of the center frequency or the signal time-bandwidth product.

CONT

The main concern regarding UWB emissions is the potential interference that they could cause to the "incumbents" in the frequency domain as well as to specific critical wireless systems that provide an important public service...

Key term(s)
  • ultra wideband emission
  • ultrawideband emission

French

Domaine(s)
  • Émission et réception radio

Spanish

Save record 7

Record 8 1995-02-21

English

Subject field(s)
  • Electronic Warfare
  • Intelligence (Military)
  • Encryption and Decryption
CONT

Remapping in the frequency domain can be as basic as inverting the frequency of the segment although most systems now use some form of band shifting or splitting.

French

Domaine(s)
  • Guerre électronique
  • Renseignement (Militaire)
  • Chiffrage et déchiffrage
CONT

Sous sa forme la plus simple, le remodelage en fréquence consiste à inverser la fréquence du segment, mais la plupart des systèmes modernes opèrent par décalage ou fractionnement de la fréquence.

Spanish

Save record 8

Record 9 1995-02-21

English

Subject field(s)
  • Electronic Warfare
  • Intelligence (Military)
  • Encryption and Decryption
CONT

Remapping in the frequency domain can be as basic as inverting the frequency of the segment although most systems now use some form of band shifting or splitting.

French

Domaine(s)
  • Guerre électronique
  • Renseignement (Militaire)
  • Chiffrage et déchiffrage
CONT

Sous sa forme la plus simple, le remodelage en fréquence consiste à inverser la fréquence du segment, mais la plupart des systèmes modernes opèrent par décalage ou fractionnement de la fréquence.

Spanish

Save record 9

Record 10 1995-02-21

English

Subject field(s)
  • Electronic Warfare
  • Intelligence (Military)
  • Encryption and Decryption
CONT

Remapping in the frequency domain can be as basis as inverting the frequency of the segment although most systems now use some form of band shifting or splitting.

French

Domaine(s)
  • Guerre électronique
  • Renseignement (Militaire)
  • Chiffrage et déchiffrage
CONT

Sous sa forme la plus simple, le remodelage en fréquence consiste à inverser la fréquence du segment, mais la plupart des systèmes opèrent par décalage ou fractionnement de la fréquence.

Spanish

Save record 10

Record 11 1985-06-28

English

Subject field(s)
  • Radio Waves
  • Differential and Integral Calculus
CONT

the classic continuous Fourier transform is in the repertoire of every electrical engineer who ever needed to find the frequency domain equivalent(magnitude and phase) of a time domain signal, and vice versa.

French

Domaine(s)
  • Ondes radioélectriques
  • Calcul différentiel et intégral

Spanish

Save record 11

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: