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TARGET PHASE [21 records]

Record 1 2024-10-17

English

Subject field(s)
  • Computer Mathematics
  • Artificial Intelligence
  • Atomic Physics
CONT

We focus on Bayesian QPE[, ] which utilizes Bayesian inference to narrow the confidence interval of the target phase value.

French

Domaine(s)
  • Mathématiques informatiques
  • Intelligence artificielle
  • Physique atomique

Spanish

Save record 1

Record 2 2022-05-31

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

The image recorded on the holographic plate is called a hologram of the target, which carries both the amplitude and phase of the returned, scattered beam from the target. The first exposure of the holographic plate by the reference beam results in a reference hologram, while the second exposure by the returned beam imposes all changes of the target to the reference hologram.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 2

Record 3 2021-07-14

English

Subject field(s)
  • Astronomy
CONT

At zero phase with the Sun directly behind the observer, a target body may exhibit opposition effect, also called opposition spike, which is an observed brightening beyond the value expected from reflection alone.

French

Domaine(s)
  • Astronomie
DEF

Pic de luminosité d'un astre éclairé par le Soleil, qui est perçu par un observateur lorsque l'astre passe à proximité de l'opposition au Soleil.

OBS

surbrillance d'opposition; effet d'opposition : termes et définition publiés au Journal officiel de la République française le 25 juillet 2015.

Spanish

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Record 4 2019-04-30

English

Subject field(s)
  • Target Acquisition
CONT

In the final target approach phase of flight, the vehicle's speed is about 500km/h, and the target images can be generated at very short intervals, which allows the mission to be reliably aborted just seconds before the calculated hit time.

French

Domaine(s)
  • Acquisition d'objectif

Spanish

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Record 5 2017-05-18

English

Subject field(s)
  • Remote Sensing
DEF

A remote-sensing term referring to the process of assigning different colours to different spectral bands.

CONT

The image processing consisted in generating intensity images and one coherence image. To facilitate their analysis and interpretation, a coloured composition has been created with the results. This composition is obtained by adding the coherence image in red, the average of both images phase intensities in green and the difference between these phase intensities in blue. As such, a high coherence level(value close to 1) appears in red and indicates a very good phase correlation between the two images, a consequence of the various mechanisms of radar signal scattering and of the lack of change which could affect the target. On the contrary, a weak coherence level(value tending to 0) appears in black and indicates a movement in these zones during the 24 hours interval which separated the two image shots. Lastly, the white spots correspond to areas with a strong radar signal backscattering i. e. with zones of hills or vegetation.

Key term(s)
  • color composition
  • colored composition

French

Domaine(s)
  • Télédétection
CONT

Dans les systèmes de télédétection, nous avons vu qu'il est possible de détecter et d'enregistrer des parties du spectre électromagnétique qui ne sont pas décelables à l'oeil nu, comme l'infrarouge par exemple. Pour pouvoir visualiser cette information, on associe aux bandes spectrales du système d'observation des couleurs d'affichage (rouge-vert-bleu), qui ne leur correspondent pas nécessairement. Ce faisant, on crée des compositions colorées [...]

Spanish

Save record 5

Record 6 2008-06-11

English

Subject field(s)
  • Marketing Research
  • Merchandising Techniques
DEF

The studies and activities involved in defining a product or service.

CONT

[Upstream marketing] is the "strategic marketing" phase in which a product's market profile and target customer base is identified.

OBS

Considerations such as sociological and demographic change, consumer habits, cultural influences, location, customer expectations, assessment of the competition, production differentiation and positioning are other factors used in determining how to profitability develop a product meeting the needs of a specific customer base.

French

Domaine(s)
  • Étude du marché
  • Techniques marchandes
DEF

Activité stratégique de l'entreprise pour étudier les marchés fournisseurs, évaluer les avantages et les inconvénients de chacun, en engager des négociations pour obtenir les meilleurs produits et les meilleurs services dans les conditions les plus avantageuses.

CONT

L'analyse des sources de matières premières, l'appréciation de l'éventail des offres disponibles, l'étude des nouvelles solutions et des modalités de prestations, constituent les bases du marketing-amont.

OBS

mercatique d'amont : terme publié au Journal officiel du 12 mai 2000.

Spanish

Save record 6

Record 7 2008-05-23

English

Subject field(s)
  • Mathematics
  • Range Measurements (Telecommunications)
  • Optics
DEF

A mathematical statement that describes the relationship between the input and the output of an imaging system.

CONT

The NRC [National Research Council] also has the capability of measuring the Optical Transfer Function (OTF) of a lens. The OTF is a consistent method of image quality evaluation for an optical system.

OBS

It includes the phase relationship between the target and measured signals(i. e. the apparent change in position of the sinus dal pattern as a function of its frequency) as well as the amplitude change as a function of frequency.

French

Domaine(s)
  • Mathématiques
  • Mesures à distance (Télécommunications)
  • Optique
DEF

Mesure de la performance géométrique d'un système optique.

Spanish

Campo(s) temático(s)
  • Matemáticas
  • Medidas de distancia (Telecomunicaciones)
  • Óptica
Save record 7

Record 8 2007-11-01

English

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

A radar seeker employing a 4-element antenna and amplitude or phase comparison target location.

CONT

... the 4-A radar seeker is used in the Matra Mica as well as the Samp/T and Lams versions of the Aster.

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie
CONT

L'autodirecteur radar 4-A équipe le Matra Mica ainsi que les versions Samp/T et Lams de l'Aster.

Spanish

Save record 8

Record 9 2007-06-29

English

Subject field(s)
  • Operating Systems (Software)
  • Surveillance, Detection and Reconnaissance (Military)
  • Intelligence (Military)
  • Remote Sensing
CONT

Imagery Exploitation System (IES). Modernized Imagery Exploitation System (MIES). MIES is a Corps and EAC tactical imagery exploitation system capable of receiving, processing, and disseminating national and theater imagery. The MIES provides first phase imagery exploitation for the Indications and Warnings (I&W) missions of Army users. The system provides IMINT reports and Secondary Imagery Dissemination (SID) through an extensive communications section. It travels with its own satellite communications (SATCOM) system that provides the relayed national imagery through the Defense Dissemination System (DDS).

CONT

The imagery Exploitation System/Balanced Technology Initiative(IES/BTI) is a first phase near-real time image exploitation system to support Army Corps intelligence and electronic warfare(IEW) situation development, target development and target acquisition. IES/BTI exploits synthetic aperture radar(SAR) and infrared(IR) imagery and annotates the presence and type(artillery, armor, etc) of military units(company size and above). IES/BTI employs a hierarchical reasoning paradigm, using Bayesian inference for hypotheses management and belief propagation to solve the complex force/terrain/military situation and formation.

PHR

Aerial, airborne real-time, automated, deployable, ground, integrated tactical, knowledge-based, modernized, modular, multi-, multi-processor radar, national, tactical imagery exploitation system (MIES).

French

Domaine(s)
  • Systèmes d'exploitation (Logiciels)
  • Surveillance, détection et reconnaissance (Militaire)
  • Renseignement (Militaire)
  • Télédétection
CONT

Dans ce domaine des capacités, l'AED [Agence européenne de défense] a porté son attention sur trois priorités. Des initiatives importantes se préparent dans le domaine «commandement, contrôle et communication», qui portent en particulier sur les fonctions radioélectriques définies par logiciel, en coopération avec la Commission, et sur un système d'exploitation photographique du théâtre d'opérations.

Spanish

Save record 9

Record 10 2007-04-10

English

Subject field(s)
  • Counter-Measures (Military operations)
  • Electronic Warfare
  • Radar, Radio Guidance and Goniometry
CONT

After launch, and as the ASCM [anti-ship cruise missile] nears the target, distraction cartridges are fired at ranges up to 4. 5 km to disturb the range and accuracy of the missile's guidance system. However, should the missile have already locked on to the ship in its final attack phase, seduction chaff is deployed to provide point defense and a means sometimes in coordination with other on-board EW [electronic warfare] equipment, to "pull" the seaker away from the ship to the chaff cloud.

French

Domaine(s)
  • Contre-mesures (Opérations militaires)
  • Guerre électronique
  • Radar, radioguidage et radiogoniométrie
OBS

Source : ministère de la Défense nationale.

Spanish

Save record 10

Record 11 2007-02-06

English

Subject field(s)
  • Launching and Space Maneuvering
DEF

The spacecraft flight period during which altitude and speed increase due to propulsion.

CONT

The ascent guidance function is responsible for commanding attitude, throttle and setting during the powered ascent phase of flight so that the vehicle attains target cutoff conditions in a near-optimal manner while satisfying path constraints such as maximum allowed bending moment and maximum allowed axial acceleration.

French

Domaine(s)
  • Lancement et manœuvres dans l'espace
DEF

Période du vol d'un véhicule aérospatial au cours de laquelle l'altitude et la vitesse croissent sous l'effet de la propulsion.

Spanish

Save record 11

Record 12 2007-01-31

English

Subject field(s)
  • Radar, Radio Guidance and Goniometry
  • Spacecraft
  • Remote Sensing
CONT

When both the amplitude and the phase information are available, it is possible to synthesize the polarization response for all the polarization states. To synthesize the response, phase information and two orthogonal(transmit and receive) polarization states are required. For example, most spaceborne SAR's(e. g. RADARSAT-2) use the HH and VV polarization configuration to satisfy the orthogonality condition. Three dimensional polarization response plots are typically used to illustrate the polarimetry response for a given target. The following conventions are commonly used : The radar response is normalized between 0 and 1 [. ] The horizontal axes are the ellipticity angle... and the orientation angle... The ellipticity angle ranges between-45°(right circularly polarized) and +45°(left circularly polarized). When [ellipticity angle equals 0°, we have linear polarization. The orientation angle... is usually defined between-90° and +90°, but is sometimes defined between 0° and +180°.

OBS

ellipticity angle: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie
  • Engins spatiaux
  • Télédétection
CONT

Le traitement polarimétrique s'effectuant sur N impulsions, la description moyenne de la cible est alors obtenue par les paramètres d'Euler (m, gamma, tau, nu et psi) dont la signification est la suivante : m représente la magnitude de la cible et correspond à la S.E.R. (surface équivalente radar) maximale que la cible présente quand elle est éclairée par la polarisation caractéristique qui lui est associée; gamma est l'angle de polarisabilité ou l'angle caractéristique de la cible; tau est l'angle d'ellipticité lié à la symétrie ou à la non-symétrie de la cible autour de l'axe de visée du radar; nu représente l'angle de rebond; enfin, psi est l'angle d'orientation de la cible par rapport à la ligne de visée du radar.

OBS

angle d'ellipticité : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).

Spanish

Campo(s) temático(s)
  • Guía radárica, radioguía y radiogoniometría
  • Naves espaciales
  • Teledetección
Save record 12

Record 13 2006-10-05

English

Subject field(s)
  • Target Acquisition
  • Surveillance, Detection and Reconnaissance (Military)
DEF

A phase that includes detection, discrimination, and acquisition.

French

Domaine(s)
  • Acquisition d'objectif
  • Surveillance, détection et reconnaissance (Militaire)

Spanish

Save record 13

Record 14 2006-06-01

English

Subject field(s)
  • Remote Sensing
DEF

A type of radar that extracts additional information about a target through measurement of the phase of echoes from a sequence of pulses(or an extended observation interval, as in an FM-CW radar).

OBS

The phase information may be used to improve the signal-to-noise ratio,... to estimate the velocity of the target through the Doppler effect... or to resolve the location of the target in a synthetic aperture radar.

OBS

coherent radar: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).

French

Domaine(s)
  • Télédétection
DEF

Radar qui permet d'obtenir des informations sur la cible en mesurant la relation de phase entre les signaux transmis et les signaux reçus.

OBS

radar cohérent : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).

Spanish

Save record 14

Record 15 2004-06-03

English

Subject field(s)
  • Defence Planning and Military Doctrine
  • CBRNE Operations
CONT

In order to make the plan workable it was necessary to change the civil defence area organization. Instead of three defensive areas, there were now four :Target Areas... Target Support Areas-These included the area lying immediately beyond 25 miles of probable ground zero. The resident population of this area would not evacuate, and it would receive the components of the Target Area Civil Defence forces who would evacuate. Phase ’C'operations would be conducted by civil defence forces in the communities of the Target Support Area. Reception Areas... Standfast Areas...

French

Domaine(s)
  • Doctrine militaire et planification de défense
  • Opérations CBRNE

Spanish

Save record 15

Record 16 1993-03-31

English

Subject field(s)
  • Artificial Intelligence
CONT

These classifiers usually have many outputs for each class and compute similarity measures between reference vectors and input patterns. The decision rule is then to classify the input pattern into the class to which the nearest reference vector belongs.

CONT

The self-organizing neural networks like ART or NEOCOGNITRON do not require a teacher(or target vector) during their training phase.

French

Domaine(s)
  • Intelligence artificielle
CONT

On prendra comme vecteur un représentant typique, appelé dès lors vecteur prototype.

Spanish

Save record 16

Record 17 1992-02-07

English

Subject field(s)
  • Applications of Automation

French

Domaine(s)
  • Automatisation et applications
OBS

Source : Direction des systèmes informatisés (Bureau des brevets)

Spanish

Save record 17

Record 18 1989-11-02

English

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

A stationary target discrimination technique that uses only the scalar information(amplitude, frequency, and phase) inherent in the radar signal to achieve target-clutter discrimination.

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie

Spanish

Save record 18

Record 19 1986-04-14

English

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

In a coherent MTI, the positive and negative video at the output of the phase detector that compares the moving target return against a transmitter cohered reference oscillator.

OBS

MTI means: moving target indicator.

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie

Spanish

Save record 19

Record 20 1984-02-06

English

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

a moving target indicator(MTI) in which a radar reference frequency oscillator is used in the receiver for phase comparison with the return signals for determining the radial component of the velocity of an object.

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie

Spanish

Save record 20

Record 21 1978-04-20

English

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

Some of the limitations [of a MTI radar] referred to as follows :...(b) Blind phases-where a moving target produces the same output from the phase detector whose characteristic is symmetrical in the phase axis.

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie
CONT

Chaque fois que le deuxième facteur est nul, [...] c'est le phénomène des phases aveugles.

Spanish

Save record 21

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