ONBOARD AVIONIC SYSTEM FOR COMMUNICATION BETWEEN AN AIRCRAFT AND THE GROUND AND METHOD FOR MANAGING A RADIO CHANNEL OF SUCH A SYSTEM

摘要

An onboard avionic system for communication between an aircraft and the ground comprising a service unit connected to various aircraft equipment and a radio communications unit providing communication between the avionic system and a communications system on the ground via a radio channel. The system comprises a configuration unit having a control unit, a geolocation unit and a database in which are recorded, data relative to the use of the radio channels which are available in a flight zone, as well as data relative to the radio conditions for the available radio channels. The configuration unit, on the basis of the aircraft geolocation data supplied by the geolocation unit, of radio condition data of the current channel, and of database data, determines if the current channel should be changed or not and, if so, determines the new channel to be used and commands the change to the new channel.

主权项

1. An onboard avionic system for communication between an aircraft and the ground comprising:
a service unit to which are connected various equipment of said aircraft, at least one radio communications unit for providing communication between said avionic system and a communications system on the ground via a radio channel, a configuration unit provided with a control unit, a geolocation unit provided for supplying the control unit with data related to the present position of said aircraft and a database in which are recorded, for each flight zone that the aircraft has flown over during previous flights, data relative to the use of the radio channels which are available in said flight zone in question as well as data relative to the radio conditions for said available radio channels, said configuration unit being interfaced with said radio communications unit such that said radio communications unit supplies said configuration unit with data relative to the radio conditions of the channel currently in use, said configuration unit, on the basis of the geolocation data of the aircraft which are supplied to the configuration unit by the geolocation unit, of data on the radio conditions of the channel currently in use supplied by the radio communications unit and of data coming from the database, being configured to determine if the channel currently used by the radio communications unit should be changed or not and, if such is the case, being configured to determine the new channel to be used and being configured to command the change to the new channel to be used.