公开(公告)号：US20250044093A1

公开(公告)日：2025-02-06

申请号：US18719776

申请日：2022-10-28

Applicant: THALES

Inventor： Gilles GENEVRIER ,  Warody LOMBARDI ,  Sébastien LEGOLL

IPC: G01C21/00 ,  G06T7/521 ,  G06T7/55

Abstract: An airborne measurement system borne by an aircraft, and comprising a plurality of conventional navigational-aid sensors generating data referred to as conventional data, at least one SPAD camera comprising a single-photon avalanche diode matrix-array detector and generating SPAD data comprising a first image and a second image of a scene to be observed, the system comprising a processing unit connected to the conventional sensors and to the at least one SPAD camera, the processing unit being adapted to: choose, in accordance with a predetermined criterion and on the basis of the conventional data and/or of the SPAD data, a use of the conventional data which is referred to as the conventional mode, or a use of the SPAD data, and possibly comprising conventional data, which is referred to as the SPAD mode, and for the conventional mode, generate measurement information referred to as conventional information on the basis of conventional data, for the SPAD mode: determine, on the basis of the first image and of the second image, an error band for the measurement of the horizontal position of the aircraft, called the protection radius, generate measurement information referred to as reinforced information on the basis of at least SPAD data.