초록

Application to the modernisation of aircraft equipped with non-inertial AHRS units so as to allow landings and take-offs in all conditions, including conditions of very poor visibility.

대표청구항 ▼

[ What is claimed is:] [1.] A system for aiding piloting of an aircraft, comprising:a head-up display (HUD);a computer (HUDC) associated with the head-up display, the computer comprising means for controlling the head-up display to display an aircraft attitude symbol;a non-inertial attitude and head

[ What is claimed is:] [1.] A system for aiding piloting of an aircraft, comprising:a head-up display (HUD);a computer (HUDC) associated with the head-up display, the computer comprising means for controlling the head-up display to display an aircraft attitude symbol;a non-inertial attitude and heading unit (AHRS) configured to supply heading, attitude, acceleration and vertical velocity information to the computer;a plurality of satellite positioning receivers having antennas substantially aligned with a principal axis of the aircraft, the receivers supplying signals to the computer; andmeans for contrasting measurements supplied by the receivers to establish aircraft heading and attitude information based upon phase comparisons of signals received by the receivers from a common satellite,wherein the computer further comprises means for computing an average of deviations between the attitude and heading information calculated from the signals of the satellite positioning receivers and the attitude and heading information supplied by the AHRS unit, and means for correcting, on the basis of the computed average of the deviations, the heading and attitude information supplied by the AHRS unit, the head-up display displaying symbols based upon the corrected heading and attitude information.