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Apparatus and method for ground prediction of characteristics of an aircraft's position along a path

A technology of aircraft and path, applied in surveying and navigation, satellite radio beacon positioning system, instruments, etc.

Active Publication Date: 2018-12-18
AIRBUS OPERATIONS (SAS)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, conventional tools (GPS / GNSS or GPIRS) for predicting the accuracy, completeness and availability of aircraft positions have different limitations, in particular none of the ground-based prediction tools cover the completeness of the on-board hardware in the calculation of the overall integrity of the position sexual surveillance

Method used

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  • Apparatus and method for ground prediction of characteristics of an aircraft's position along a path

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Embodiment Construction

[0059]Schematically shown and illustrated on a single figure is a device 1 of the invention for automatic prediction (that is to say, before flight) on the ground of the accuracy, completeness, and and availability of equipment.

[0060] According to the present invention, the forecasting device 1 comprises:

[0061] - a path generation unit 2 to provide an aircraft path (intended to be followed by the aircraft) comprising a flight path and / or a ground path;

[0062] - a central unit 3 which is connected to said unit 2 by a link 4 and which comprises at least:

[0063] a calculation element 5 that includes a conventional model 6 of the aircraft and by means of this model 6 the dynamics of the aircraft on the path are determined; and

[0064] • Computational element 7 comprising a performance and integrity model 8 similar to and consistent with the conventional model (performance and integrity model) onboard the aircraft. Such conventional models are well known. This comput...

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Abstract

The predictive device (1) includes a computing element (7) including a performance and integrity model (8) consistent with the model onboard the aircraft, said second computing element (7) determining Accuracy, integrity and availability information of the positioning, said integrity information taking into account the integrity of the satellite positioning system and the integrity of at least one piece of hardware on the aircraft.

Description

technical field [0001] The present invention relates to a device and a method for predicting on the ground characteristics, such as accuracy, completeness and availability, of the positioning of an aircraft, especially a transport aircraft, along a path. Background technique [0002] It is known that systems for positioning transport aircraft (on the ground and in flight) are generally based on GPS / GNSS signals associated with positioning satellites. Synchronization of the signals is achieved by atomic clocks onboard each satellite. A receiver mounted on board the aircraft compares the offset of the received signal with respect to a signal generated locally in the receiver, and thus measures the distance from the satellite. These measurements are repeated on all visible satellites (that is to say on all satellites for which the signal was received on board the aircraft) and make it possible to continuously calculate a position fix. [0003] Any distance measurement, regard...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
CPCG01S19/15G01S19/18G01C21/20G05D1/106G01S19/13
Inventor P·格梅雷克J-D·佩里A·吉耶
Owner AIRBUS OPERATIONS (SAS)