Device and method for prediction on the ground of characteristics of the position of an aircraft along a path

摘要

A prediction device for prediction on the ground of characteristics of the position of an aircraft along a path is provided. The prediction device comprises a calculation element comprising a performance and integrity model consistent with a model on board an aircraft. The second calculation element determines precision, integrity and availability information concerning the position of the aircraft along a flight and/or ground path. The integrity information taking account of an integrity of a satellite positioning system and at least one hardware integrity on board the aircraft.

主权项

1. A device for prediction on the ground of characteristics of a position of an aircraft along a path, comprising:
a flight path generation unit that supplies a path of the aircraft including at least one of a flight path and a ground path; a central unit comprising:
a first calculation element including a model of the aircraft and that determines dynamics of the aircraft on the path; anda second calculation element including a performance and integrity model consistent with a model onboard the aircraft, which, with the aid of said performance and integrity model, taking into account the dynamics of the aircraft, determines precision, integrity and availability of information concerning the position of the aircraft along the path, said integrity information including an integrity of a satellite positioning system used by the aircraft calculated as a signal in space protection radius (HILSIS), a hardware integrity of a position calculator onboard the aircraft calculated as a first hardware protection radius (HILH/W1), and a hardware integrity of a satellite signal receiver onboard the aircraft calculated as a second hardware protection radius (HILH/W2); and a unit that presents said precision, integrity and availability information to a user; wherein the maximum of at least the HILSIS, the HILH/W1, and the HILH/W2 is compared to a navigation system error to indicate whether an aircraft procedure can be carried out.