METHOD AND DEVICE FOR AUTOMATICALLY COMPARING FLIGHT TRAJECTORIES OF AIRCRAFT

摘要

A method and device for automatically comparing two flight trajectories for an aircraft includes a central processing unit having a first comparison element for automatically comparing lateral trajectories of the two flight trajectories, and a second comparison element for automatically comparing vertical trajectories of these two flight trajectories, these comparisons being carried out successively leg by leg of the flights, these comparisons being carried out as long as the respective successive legs are identical and at least for a predefined distance in the horizontal plane.

主权项

1. A method for automatic comparison of a first flight trajectory and a second flight trajectory for an aircraft, wherein the first flight trajectory includes a first vertical trajectory and a first lateral trajectory, and the second flight trajectory includes a second vertical trajectory and a second lateral trajectory, wherein the first lateral trajectory and the second lateral trajectory each include a succession of lateral segments, and the first vertical trajectory and the second vertical trajectory each include a succession of vertical segments, the method comprising:
a) receiving the first flight trajectory and the second flight trajectory; b) automatically carrying out at least one of the following comparison steps b1 and b2: b1) comparing the first lateral trajectory and the second lateral trajectory of the first and second flight trajectories, wherein the comparison is performed on successive segments of the first and second lateral flight trajectories, and each segment is defined by geometry parameters including the type of the segment, and wherein the comparison is continued for as long as the respective successive segments of the first and second lateral flight trajectories are identical and at least until the segments cover a predetermined distance in the horizontal plane; and b2) comparing the first vertical trajectory and the second vertical trajectory of the first and second flight trajectories, wherein the comparison is performed on successive segments of the first and second vertical flight trajectories, and each segment is defined by geometry parameters including the type of the segment, and wherein the comparison is continued for as long as the respective successive segments of the first and second vertical flight trajectories are identical and at least until the segments cover a predetermined distance in the horizontal plane; and c) transmitting automatically the result of the comparison step carried out in step b) to a user device.