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AIR-GROUND INTERFACE [3 records]

Record 1 2026-01-08

English

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

The focusing algorithm places all reflectors in their correct physical positions and thus allows relatively simple separation of reflections coming from above surface reflectors, the air-ground interface and buried objects. This substantially simplifies the task of object detection. Furthermore, the focusing algorithm reconstructs the reflector shape(how accurately this is done depends on the focusing algorithm)...

French

Domaine(s)
  • Mathématiques informatiques
  • Intelligence artificielle

Spanish

Campo(s) temático(s)
  • Matemáticas para computación
  • Inteligencia artificial
Save record 1

Record 2 2015-07-08

English

Subject field(s)
  • Telecommunications
  • Telephony and Microwave Technology
DEF

An internetwork architecture that allows ground, air-ground and avionic data subnetworks to interoperate by adopting common interface services and protocols based on the International Organization for Standardization(ISO) Open Systems Interconnection(OSI) reference model.

OBS

aeronautical telecommunication network; ATN: term, abbreviation and definition officially approved by the International Civil Aviation Organization (ICAO).

French

Domaine(s)
  • Télécommunications
  • Téléphonie et techniques hyperfréquences
DEF

Architecture interréseaux qui permet aux sous-réseaux de données sol, air-sol et avionique d'interopérer en adoptant des services et protocoles d'interface communs fondés sur le modèle de référence pour l'interconnexion de systèmes ouverts (OSI) de l'Organisation internationale de normalisation (ISO).

OBS

réseau de télécommunications aéronautiques; ATN : terme, abréviation et définition uniformisés par l'Organisation de l'aviation civile internationale (OACI).

Spanish

Campo(s) temático(s)
  • Telecomunicaciones
  • Telefonía y tecnología de microondas
DEF

Arquitectura entre redes que permite el interfuncionamiento de las subredes de datos de tierra, aire/tierra y aviónica, mediante la adopción de servicios y protocolos con equipo común de interfaz basados en el modelo de referencia para la interconexión de sistemas abiertos (OSI) de la Organización Internacional de Normalización (ISO).

OBS

red de telecomunicaciones aeronáuticas; ATN: término, abreviatura y definición aceptados oficialmente por la Organización de Aviación Civil Internacional (OACI).

OBS

ATN, por sus siglas en inglés.

Save record 2

Record 3 2002-04-12

English

Subject field(s)
  • Remote Sensing
DEF

A antenna polarization selection (transmit and receive) that maximizes the received power from a given class of scatterers.

OBS

These optimum polarization states will be related to different independent scattering mechanisms that lead to the locally best height estimation. In case of buried mine detection, it is expected to find two coherence maxima : the mine and the surface clutter(or air-ground interface). After generating the two interferograms corresponding to these optimum polarization states, one can extract the height difference between them. The resulting height difference map will exhibit some peaks at those positions where the mines are buried, whereas it will remain close to zero at those zones of the image where only a single natural surface scattering process can be found.

OBS

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

French

Domaine(s)
  • Télédétection
DEF

Sélection de polarisations d'antenne (émission et en réception) servant à maximiser la puissance reçue d'une classe donnée de diffuseurs.

CONT

Une polarisation optimale permet d'améliorer la force du signal pour les mesures par images de particules.

OBS

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

Spanish

Save record 3

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