Direct Flight Track Prediction Method and Direct Flight Method in Airborne Flight Management System

Abstract

In order to solve the technical problem that the existing direct flight method cannot obtain the predicted flight path of the direct flight, the present invention provides a direct flight path prediction method and a direct flight method in an airborne flight management system. Determine the center of the circle by the turning radius R and the current flight heading, and then make an arc and determine the turning end point P, so as to obtain the predicted flight path of the direct flight to the target waypoint; the turning radius R and the current flight heading determine the center of the circle, and then draw a circle arc, and according to the truncated course angle φ c The tangent slope of the arc is determined, and then the turning end point P is determined, so as to obtain the predicted flight path of the direct flight to the intercepted flight segment of the target. The present invention can obtain the entire predicted direct flight track for realizing the direct flight function, and based on the acquired direct flight predicted track, can guide the aircraft to fly along the predicted track.

Description

technical field [0001] The invention belongs to the field of airborne avionics systems, and relates to a direct flight path prediction method in an airborne flight management system and a method for realizing direct flight. Background technique [0002] General-purpose aircraft are becoming more and more popular, and are widely used in agriculture, forestry, animal husbandry, fishery, tourism, etc. The direct flight function is a way to execute the flight plan. During the flight, due to factors such as dangerous weather and air traffic control restrictions, the aircraft needs to deviate from the current active route and fly directly to a target waypoint or target cut-off segment. [0003] At present, in the airborne integrated electronic system, for the realization of the direct flight function, only the connecting flight segment from the current position of the aircraft to the target waypoint can be given, and the entire direct flight prediction track for realizing the dire...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the existing direct flight method cannot obtain the direct flight predicted track, the present invention provides a direct flight track prediction method and a direct flight method in the airborne flight management system

Images