TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
SUITE IMPULSION [7 records]
Record 1 - internal organization data 2016-01-14
Record 1, English
Record 1, Subject field(s)
- Radar, Radio Guidance and Goniometry
Record 1, Main entry term, English
- range folding
1, record 1, English, range%20folding
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Range folding: The time between pulses emitted by a radar must be long enough for any scattered energy from the first pulse to return before the radar has transmitted another pulse; otherwise, the radar will interpret the energy scatter from the original pulse as belonging to the second pulse. 1, record 1, English, - range%20folding
Record 1, French
Record 1, Domaine(s)
- Radar, radioguidage et radiogoniométrie
Record 1, Main entry term, French
- repliement de la portée
1, record 1, French, repliement%20de%20la%20port%C3%A9e
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Repliement de la portée : Le temps écoulé entre chaque impulsion émise par un radar doit être suffisamment long pour permettre à toute énergie diffusée à partir de la première impulsion de revenir vers le radar avant que ce dernier n’ ait émis une autre impulsion; dans le cas contraire, le radar interprétera l'énergie diffusée à la suite de l'impulsion initiale comme appartenant à la deuxième impulsion. 1, record 1, French, - repliement%20de%20la%20port%C3%A9e
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2014-01-23
Record 2, English
Record 2, Subject field(s)
- Electrodiagnosis
Record 2, Main entry term, English
- perturbational complexity index
1, record 2, English, perturbational%20complexity%20index
correct
Record 2, Abbreviations, English
- PCI 2, record 2, English, PCI
correct
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
Theoretical considerations suggest that consciousness depends on the brain’s ability to support complex activity patterns that are, at once, distributed among interacting cortical areas (integrated) and differentiated in space and time (information-rich). We introduce and test a theory-driven index of the level of consciousness called the perturbational complexity index (PCI) ... PCI reliably discriminated the level of consciousness in single individuals during wakefulness, sleep, and anesthesia, as well as in patients who had emerged from coma and recovered a minimal level of consciousness. PCI can potentially be used for objective determination of the level of consciousness at the bedside. 3, record 2, English, - perturbational%20complexity%20index
Record 2, French
Record 2, Domaine(s)
- Électrodiagnostiques
Record 2, Main entry term, French
- indice de complexité perturbationnelle
1, record 2, French, indice%20de%20complexit%C3%A9%20perturbationnelle
correct, masculine noun
Record 2, Abbreviations, French
- PCI 2, record 2, French, PCI
masculine noun
- ICP 3, record 2, French, ICP
proposal, masculine noun
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 OBS
[Cette] méthode permet de quantifier le niveau de conscience d’une personne, qui varie selon son état de sommeil ou d’éveil, ou à la suite de certaines lésions cérébrales [...] Le principe de [cette méthode est de] quantifier la complexité de la réponse cérébrale à une stimulation externe, en l'occurrence une impulsion magnétique appliquée sur le cr ne(on parle de stimulation magnétique transcr nienne, ou TMS). 4, record 2, French, - indice%20de%20complexit%C3%A9%20perturbationnelle
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2007-04-25
Record 3, English
Record 3, Subject field(s)
- Magnetic Resonance Imaging
Record 3, Main entry term, English
- echo planar imaging
1, record 3, English, echo%20planar%20imaging
correct
Record 3, Abbreviations, English
- EPI 2, record 3, English, EPI
correct
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
A rapid magnetic resonance imaging technique which is capable of producing [images of a slice] at video rates. 3, record 3, English, - echo%20planar%20imaging
Record 3, Key term(s)
- echo-planar imaging
Record 3, French
Record 3, Domaine(s)
- Imagerie par résonance magnétique
Record 3, Main entry term, French
- imagerie par écho planar
1, record 3, French, imagerie%20par%20%C3%A9cho%20planar
correct, feminine noun
Record 3, Abbreviations, French
- EPI 2, record 3, French, EPI
correct, feminine noun
Record 3, Synonyms, French
- imagerie échoplanaire 3, record 3, French, imagerie%20%C3%A9choplanaire
correct, feminine noun
- IEP 4, record 3, French, IEP
correct, feminine noun
- IEP 4, record 3, French, IEP
- imagerie écho-planaire 5, record 3, French, imagerie%20%C3%A9cho%2Dplanaire
correct, feminine noun
- EPI 5, record 3, French, EPI
correct, feminine noun
- EPI 5, record 3, French, EPI
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Les techniques d’imagerie par écho planar sont actuellement les plus rapides(quelques dizaines de millisecondes pour une image). Le principe consiste à réaliser le codage de l'ensemble du plan de Fourier(ligne de la matrice image) à la suite d’une seule [impulsion de radiofréquence] par commutation de gradients très puissants. 6, record 3, French, - imagerie%20par%20%C3%A9cho%20planar
Record 3, Key term(s)
- imagerie écho planaire
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2006-05-08
Record 4, English
Record 4, Subject field(s)
- Remote Sensing
Record 4, Main entry term, English
- radar backscattering
1, record 4, English, radar%20backscattering
correct, officially approved
Record 4, Abbreviations, English
Record 4, Synonyms, English
- radar back-scattering 2, record 4, English, radar%20back%2Dscattering
correct
- backscattering 3, record 4, English, backscattering
correct
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
The process by which backscatter is formed. 3, record 4, English, - radar%20backscattering
Record number: 4, Textual support number: 1 OBS
backscatter: The portion of the outgoing radar signal that the target redirects directly back towards the radar antenna. 3, record 4, English, - radar%20backscattering
Record number: 4, Textual support number: 2 OBS
radar backscattering: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 4, record 4, English, - radar%20backscattering
Record 4, Key term(s)
- radar back scattering
Record 4, French
Record 4, Domaine(s)
- Télédétection
Record 4, Main entry term, French
- rétrodiffusion radar
1, record 4, French, r%C3%A9trodiffusion%20radar
correct, feminine noun, officially approved
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Procédé relatif à la rétrodiffusion. 2, record 4, French, - r%C3%A9trodiffusion%20radar
Record number: 4, Textual support number: 1 OBS
rétrodiffusion : Quantité d’énergie retournée vers l'antenne du radar, par les particules situées dans le faisceau du radar, à la suite de l'émission d’une impulsion radar. 3, record 4, French, - r%C3%A9trodiffusion%20radar
Record number: 4, Textual support number: 2 OBS
rétrodiffusion radar : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 2, record 4, French, - r%C3%A9trodiffusion%20radar
Record 4, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 2005-11-14
Record 5, English
Record 5, Subject field(s)
- Radar, Radio Guidance and Goniometry
- Spacecraft
- Remote Sensing
Record 5, Main entry term, English
- backscattering mechanism
1, record 5, English, backscattering%20mechanism
correct, officially approved
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record number: 5, Textual support number: 1 CONT
For three-day intervals, an average radar cross-section (NRCS-40) is computed for each grid point by linear regression between the measured NRCS [Normalized Radar Cross-Section] and their respective incidence angles. NRCS-40 is the value of this regression line at an incidence angle of 40°. This procedure accounts for the incidence angle dependence of the NRCS, which is highly variable in spring when the backscattering mechanism changes from volume to surface scattering depending on snow cover, snow wetness, soil moisture and the penetration depth of the microwaves. 2, record 5, English, - backscattering%20mechanism
Record number: 5, Textual support number: 1 OBS
Backscatter is the portion of the outgoing radar signal that the target redirects directly back towards the radar antenna. Backscattering is the process by which backscatter is formed. 3, record 5, English, - backscattering%20mechanism
Record number: 5, Textual support number: 2 OBS
backscattering mechanism: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 4, record 5, English, - backscattering%20mechanism
Record 5, French
Record 5, Domaine(s)
- Radar, radioguidage et radiogoniométrie
- Engins spatiaux
- Télédétection
Record 5, Main entry term, French
- mécanisme de rétrodiffusion
1, record 5, French, m%C3%A9canisme%20de%20r%C3%A9trodiffusion
correct, masculine noun, officially approved
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 CONT
Sur les eaux libres, le principal mécanisme de rétrodiffusion pour les mesures off-nadir du diffusiomètre est le mécanisme de Bragg. 2, record 5, French, - m%C3%A9canisme%20de%20r%C3%A9trodiffusion
Record number: 5, Textual support number: 1 OBS
rétrodiffusion : Quantité d’énergie retournée vers l'antenne du radar, par les particules situées dans le faisceau du radar, à la suite de l'émission d’une impulsion radar. 3, record 5, French, - m%C3%A9canisme%20de%20r%C3%A9trodiffusion
Record number: 5, Textual support number: 2 OBS
mécanisme de rétrodiffusion : terme uniformisé par le Groupe de travail de la terminologie de Radarsat-2 (GTTR). 4, record 5, French, - m%C3%A9canisme%20de%20r%C3%A9trodiffusion
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 1999-12-06
Record 6, English
Record 6, Subject field(s)
- Meteorology
- Radioelectricity
Record 6, Main entry term, English
- back-scattering
1, record 6, English, back%2Dscattering
correct
Record 6, Abbreviations, English
Record 6, Synonyms, English
- back scattering 2, record 6, English, back%20scattering
correct
- backward scatter 2, record 6, English, backward%20scatter
correct
Record 6, Textual support, English
Record number: 6, Textual support number: 1 DEF
Quantity of energy scattered back to the radar antenna, by particles situated in the radar beam, following the emission of a radar pulse. 1, record 6, English, - back%2Dscattering
Record number: 6, Textual support number: 1 CONT
In radar usage, backward scatter refers only to that radiation scattered at 180° to the direction of the incident wave. 2, record 6, English, - back%2Dscattering
Record 6, French
Record 6, Domaine(s)
- Météorologie
- Radioélectricité
Record 6, Main entry term, French
- rétrodiffusion
1, record 6, French, r%C3%A9trodiffusion
correct, feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 DEF
Quantité d’énergie retournée vers l'antenne du radar, par les particules situées dans le faisceau du radar, à la suite de l'émission d’une impulsion radar. 1, record 6, French, - r%C3%A9trodiffusion
Record 6, Spanish
Record 6, Campo(s) temático(s)
- Meteorología
- Radioelectricidad
Record 6, Main entry term, Spanish
- retrodifusión
1, record 6, Spanish, retrodifusi%C3%B3n
feminine noun
Record 6, Abbreviations, Spanish
Record 6, Synonyms, Spanish
Record 6, Textual support, Spanish
Record number: 6, Textual support number: 1 DEF
Cantidad de energía devuelta hacia la antena del radar por partículas situadas en el haz del radar, después de la emisión de un impulso de radar. 1, record 6, Spanish, - retrodifusi%C3%B3n
Record 7 - internal organization data 1996-12-16
Record 7, English
Record 7, Subject field(s)
- Photoelectricity and Electron Optics
- Optical Telecommunications
Record 7, Main entry term, English
- pulse sequence 1, record 7, English, pulse%20sequence
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, Textual support, English
Record number: 7, Textual support number: 1 OBS
optoelectronics 2, record 7, English, - pulse%20sequence
Record 7, French
Record 7, Domaine(s)
- Photo-électricité et optique électronique
- Télécommunications optiques
Record 7, Main entry term, French
- suite d'impulsion
1, record 7, French, suite%20d%27impulsion
feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record 7, Spanish
Record 7, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.
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: