Apr 30, 2022 09:39
2 yrs ago
21 viewers *
French term
transformation géométrique de passage
French to English
Tech/Engineering
Electronics / Elect Eng
radar system
Context:
Le calcul de valeurs de paramètres est effectué par résolution numérique d’un système d’équations mettant en œuvre une matrice de rotation et un vecteur de translation définissant ladite transformation géométrique de passage.
Still proof-reading and see that this has been translated variously as:
geometric passing transformation
geometric pass-through transformation
Suggestions as to which is the correct one?
TIA Chris.
Le calcul de valeurs de paramètres est effectué par résolution numérique d’un système d’équations mettant en œuvre une matrice de rotation et un vecteur de translation définissant ladite transformation géométrique de passage.
Still proof-reading and see that this has been translated variously as:
geometric passing transformation
geometric pass-through transformation
Suggestions as to which is the correct one?
TIA Chris.
Proposed translations
(English)
| 4 +1 | geometric transformation for conversion of data [between two frames of reference] |
Daryo
|
| 4 +1 | geometric change-of-basis transformation |
Jennifer Levey
|
Proposed translations
+1
10 hrs
French term (edited):
transformation géométrique de passage [entre le référentiel A et le référentiel B]
Selected
geometric transformation for conversion of data [between two frames of reference]
here "passage" is about the conversion of imputed data from one frame of reference to another frame of reference.
transformation géométrique de passage entre le référentiel A et le référentiel B
=
geometric transformation used to convert data expressed in the frame of reference A into (the same) data expressed in the frame of reference B
looks like this "transformation géométrique de passage" is about comparing inputs from two radars, and in order to make them comparable, the "rotation" is there to correct for different orientations of the radars and the "translation" is there to correct for the difference in the spatial positions of the radars.
plenty of article about "Converting between two frames of reference"
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Note added at 11 hrs (2022-04-30 20:48:08 GMT)
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... définissant ladite transformation géométrique de passage.
=
... that define the geometric transformation used for the conversion (implied: of data from one frame of reference to the other)
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Note added at 14 hrs (2022-05-01 00:14:08 GMT)
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or
the geometric transformation (that was applied/used) for (the) conversion of data
transformation géométrique de passage entre le référentiel A et le référentiel B
=
geometric transformation used to convert data expressed in the frame of reference A into (the same) data expressed in the frame of reference B
looks like this "transformation géométrique de passage" is about comparing inputs from two radars, and in order to make them comparable, the "rotation" is there to correct for different orientations of the radars and the "translation" is there to correct for the difference in the spatial positions of the radars.
plenty of article about "Converting between two frames of reference"
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Note added at 11 hrs (2022-04-30 20:48:08 GMT)
--------------------------------------------------
... définissant ladite transformation géométrique de passage.
=
... that define the geometric transformation used for the conversion (implied: of data from one frame of reference to the other)
--------------------------------------------------
Note added at 14 hrs (2022-05-01 00:14:08 GMT)
--------------------------------------------------
or
the geometric transformation (that was applied/used) for (the) conversion of data
Peer comment(s):
| agree |
Johannes Gleim
: III.F. Geometric Transformations The basic transformations are scaling, rotation, translation, and shear. Other important types of transformations are projections and mappings. https://www.sciencedirect.com/topics/computer-science/geomet...
20 hrs
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Thanks!
|
4 KudoZ points awarded for this answer.
Comment: "Thank you, client`s choice."
+1
4 hrs
Jennifer Levey
Chile
Chile
Native in English
Specializes in field
Chile
Human-scale Globalization
Native in: English (Variant: British) 
Works in: Spanish to English, French to English, English to Spanish, and 2 more.
Related KudoZ points
:
263
geometric change-of-basis transformation
passage most probably refers here to the methods used in linear algebra in order to carry out a 'change of basis', where a 'basis' is a set of 3 orthogonal vectors that define a three-dimensional space containing a given vector (such as that representing the boresight of an antenna). As noted here: https://en.wikipedia.org/wiki/Basis_(linear_algebra)#Change_... , any given vector space can have several bases.
This webref: https://en.wikipedia.org/wiki/Change_of_basis explains the 'change-of-basis' formula used to express the coordinates relative to one basis in terms of coordinates relative to the other basis.
" ... xold = Axnew, where ... A is the change-of-basis matrix (also called transition matrix) ...".
If we switch to the French version of the 2nd Wikiref: https://fr.wikipedia.org/wiki/Changement_de_base_(algèbre_li... , the first sentence reads: En mathématiques, plus précisément en algèbre linéaire, une matrice de passage (ou encore matrice de changement de base) permet d'écrire des formules de changement de base pour les représentations matricielles des vecteurs, ...
Asker's additional context: " ... a computing unit (20) configured to calculate values of parameters defining a geometric transformation for moving from the reference frame of the carrier and the reference frame of the onboard apparatus," describes rather precisely a practical example of circumstances where a 'change of basis' is being calculated.
transformation géométrique de passage (where passage = changement de base)
-->
geometric change-of-basis transformation
or:
geometric transition transformation
I would suggest using the first expression, which relates more-specifically to linear algebra than does the second one.
This webref: https://en.wikipedia.org/wiki/Change_of_basis explains the 'change-of-basis' formula used to express the coordinates relative to one basis in terms of coordinates relative to the other basis.
" ... xold = Axnew, where ... A is the change-of-basis matrix (also called transition matrix) ...".
If we switch to the French version of the 2nd Wikiref: https://fr.wikipedia.org/wiki/Changement_de_base_(algèbre_li... , the first sentence reads: En mathématiques, plus précisément en algèbre linéaire, une matrice de passage (ou encore matrice de changement de base) permet d'écrire des formules de changement de base pour les représentations matricielles des vecteurs, ...
Asker's additional context: " ... a computing unit (20) configured to calculate values of parameters defining a geometric transformation for moving from the reference frame of the carrier and the reference frame of the onboard apparatus," describes rather precisely a practical example of circumstances where a 'change of basis' is being calculated.
transformation géométrique de passage (where passage = changement de base)
-->
geometric change-of-basis transformation
or:
geometric transition transformation
I would suggest using the first expression, which relates more-specifically to linear algebra than does the second one.
Note from asker:
| Thanks for the explanation. Think I`ll mull it over before going back to client with suggestion to make several changes to the document. |
Peer comment(s):
| neutral |
Daryo
: close, but the bit initially left implied makes a significant difference. //(1) "as is" this doesn't fit in the ST (2) you are free to check for yourself the numerous relevant sources (by experts) using the "imprecise" formulation I proposed.
6 hrs
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The mathematical expression 'change of basis' is, in the context of a 3D vector space, quite precisely, what you imprecisely refer to as the 'conversion of data between two frames of reference'.
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| agree |
Anastasia Kalantzi
20 hrs
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Reference comments
1 hr
Reference:
comment
I am unable to find your phrase in French, which is bothering me.
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Note added at 1 hr (2022-04-30 10:52:17 GMT)
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"passage" does not feature here:
Les matrices de transformations | Secondaire | Alloprof
https://www.alloprof.qc.ca › eleves › mathematiques › les-...
Toutes les transformations géométriques (translation, rotation, réflexion, homothétie) sont possibles avec la multiplication de matrices de transformation.
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Note added at 1 hr (2022-04-30 10:59:24 GMT)
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de passage can =
transitional/temporary
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Note added at 1 hr (2022-04-30 11:01:29 GMT)
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other finding
GÉOMÉTRIE DE LA SPATIOCARTE - PoPuPS
https://popups.uliege.be › ...
PDF
by R BILLEN · 2000 · Cited by 10 — transformation géométrique. Le passage d'un système image à un autre système ... d'images (capteur optique, radar, etc.). D'autre part,.
(PDF) Etude et Evaluation des Techniques de Corrélation et ...
https://www.researchgate.net › 28436...
· Translate this page
En effet, le passage d'une image à une autre est assuré par une transformation géométrique adéquate. Les méthodes de création d'un modèle de transformation ...
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Note added at 1 hr (2022-04-30 11:03:53 GMT)
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passage
can also mean
conversion
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Note added at 1 hr (2022-04-30 11:05:48 GMT)
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In Euclidean geometry, a translation is a geometric transformation that moves every point of a figure, shape or space by the same distance in a given direction. A translation can also be interpreted as the addition of a constant vector to every point, or as shifting the origin of the coordinate system.
It could well mean "translation"
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Note added at 1 hr (2022-04-30 10:52:17 GMT)
--------------------------------------------------
"passage" does not feature here:
Les matrices de transformations | Secondaire | Alloprof
https://www.alloprof.qc.ca › eleves › mathematiques › les-...
Toutes les transformations géométriques (translation, rotation, réflexion, homothétie) sont possibles avec la multiplication de matrices de transformation.
--------------------------------------------------
Note added at 1 hr (2022-04-30 10:59:24 GMT)
--------------------------------------------------
de passage can =
transitional/temporary
--------------------------------------------------
Note added at 1 hr (2022-04-30 11:01:29 GMT)
--------------------------------------------------
other finding
GÉOMÉTRIE DE LA SPATIOCARTE - PoPuPS
https://popups.uliege.be › ...
by R BILLEN · 2000 · Cited by 10 — transformation géométrique. Le passage d'un système image à un autre système ... d'images (capteur optique, radar, etc.). D'autre part,.
(PDF) Etude et Evaluation des Techniques de Corrélation et ...
https://www.researchgate.net › 28436...
· Translate this page
En effet, le passage d'une image à une autre est assuré par une transformation géométrique adéquate. Les méthodes de création d'un modèle de transformation ...
--------------------------------------------------
Note added at 1 hr (2022-04-30 11:03:53 GMT)
--------------------------------------------------
passage
can also mean
conversion
--------------------------------------------------
Note added at 1 hr (2022-04-30 11:05:48 GMT)
--------------------------------------------------
In Euclidean geometry, a translation is a geometric transformation that moves every point of a figure, shape or space by the same distance in a given direction. A translation can also be interpreted as the addition of a constant vector to every point, or as shifting the origin of the coordinate system.
It could well mean "translation"
Peer comments on this reference comment:
| neutral |
Daryo
: "unable to find ..." well, that illustrates the whole point of "google search" vs. humans; it will take A LOT of improvement before the "pattern recognition capability" of search engines gets anywhere near that of humans knowing the subject matter.
6 days
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Discussion
Tech/Engineering - Electronics / Elect Eng / radar system
this is far more useful:
calcul de valeurs de paramètres définissant une transformation géométrique de passage entre le référentiel du porteur et le référentiel de l’équipement embarqué en utilisant lesdites données inertielles et données d’accélération mémorisées.
as it shows that "passage" on its own is meaningless without the part initially left implied:
passage entre le référentiel du porteur et le référentiel de l’équipement embarqué
BTW
"geometric passing transformation" = ZERO ghits
"geometric pass-through transformation" = ZERO ghits
A bit worrying for what is supposed to be a widely used term, and just confirms my first reaction: none of the above.
The invention relates to a system and a method for automatically harmonizing the position and/or orientation between an apparatus (6, 10) on board a mobile carrier
It is an onboard radar system, aircraft, helicopter etc. and the system is there to automatically correct any misalignment of the different antenna. The equations to be solved concern data from the different sensors, inertia and angular velocity.
In which way this calculation has anything to do with "radars"? What does this "matrix" represents? In which way are these "parameters" subsequently used? To calculate what exactly?
a computing unit (20) configured to calculate values of parameters defining a geometric transformation for moving from the reference frame of the carrier and the reference frame of the onboard apparatus,
Don`t know whether this helps or simply adds to the confusion.
calcul de valeurs de paramètres définissant une transformation géométrique de passage entre le référentiel du porteur et le référentiel de l’équipement embarqué en utilisant lesdites données inertielles et données d’accélération mémorisées.