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INITIAL TRAINING AIRCRAFT [4 records]

Record 1 2003-07-09

English

Subject field(s)
  • Aircraft Piloting and Navigation
CONT

The investigation is concentrating on the following areas : all recording devices on the aircraft, including the stoppage of the cockpit voice recorder after the initial impact; the performance and serviceability of all aircraft systems and structures; the aircraft's performance, particularly during the attempted go-around; pilot training and the pilots’ actions during the approach and landing;...

Key term(s)
  • attempted go around

French

Domaine(s)
  • Pilotage et navigation aérienne
CONT

L'enquête se penchera sur les points suivants : tous les enregistreurs de l'avion, y compris l'arrêt du CVR (enregistreur de la parole dans le poste de pilotage) après le premier impact; la performance et l'état de fonctionnement des systèmes et des structures de l'avion; les performances de l'avion, surtout pendant la tentative de remise des gaz; [...]

Spanish

Save record 1

Record 2 2001-09-21

English

Subject field(s)
  • Aircraft Piloting and Navigation
  • Launching and Space Maneuvering
  • Ship Piloting
CONT

This thesis presents a new approach for the initialization process(initial alignment and calibration) of strapdown Inertial Navigation Systems for air launched tactical missiles operating in an unaided inertial navigation mode... The initialization is treated as a training of Artificial Neural Network filter. A new methodology is developed which can handle, misalignment of Inertial Navigation System and scale factor, as well as bias errors of the measurement instruments used in Inertial Navigation System... It is shown that the optimization algorithm employed as well as Artificial Neural Network is quite suitable for Inertial Navigation System initialization. Prelaunch aircraft maneuvers measured by the Inertial Navigation System of the aircraft provide the necessary training data for the Neural Network for the missile navigation system that initializes the missile's inertial navigation system.

Key term(s)
  • initialization of an inertial navigation system
  • initializing of an inertial navigation system
  • INS initializing

French

Domaine(s)
  • Pilotage et navigation aérienne
  • Lancement et manœuvres dans l'espace
  • Pilotage des navires
CONT

Alignement et initialisation de la centrale : la deuxième opération consiste à aligner la plate-forme sur les directions stellaires, ou encore aligner les axes plate-forme Xp, Yp, Zp sur les axes absolus. [...] À l'instant initial, cette opération porte le nom d'initialisation de la centrale, et à un instant quelconque on l'appellera asservissement de la plate-forme. Tout repose sur une rotation d'erreur détectée par des «pick off» (détecteurs d'écarts angulaires) placés sur les articulations des axes 1-2-3-4.

OBS

Un des gros inconvénients des centrales inertielles était la nécessité de les recaler (tout comme le conservateur de cap). De nos jours cet inconvénient a totalement disparu dans la mesure où l'initialisation est réalisée automatiquement à partir d'informations issues d'au moins trois satellites ... Américains.

Spanish

Save record 2

Record 3 2001-09-11

English

Subject field(s)
  • Flight Instruments and Equipment (Aeroindustry)
  • Aircraft Piloting and Navigation
  • Navigation Instruments
OBS

[The] thesis presents a new approach for the initialization process(initial alignment and calibration) of strapdown inertial navigation systems for air launched tactical missiles operating in an unaided inertial navigation mode... Prelaunch aircraft maneuvers measured by the inertial navigation system of the aircraft provide the necessary training data for the Neural Network for the missile navigation system that initializes the missile's inertial navigation system.

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Pilotage et navigation aérienne
  • Instruments de navigation
OBS

Alignement et initialisation de la centrale [inertielle] : la deuxième opération consiste à aligner la plate-forme sur les directions stellaires, ou encore aligner les axes plate-forme Xp, Yp, Zp sur les axes absolus.

Spanish

Save record 3

Record 4 1994-09-09

English

Subject field(s)
  • Types of Aircraft

French

Domaine(s)
  • Types d'aéronefs

Spanish

Save record 4

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