Lateral guidance command generation method for aircraft flight tracking linear and circular path

Abstract

The invention relates to a lateral guidance command generation method for an aircraft flight tracking linear and circular path. A flight path of an aircraft gradually converges to a straight or arc path that is preset to pass, the vertical distance between the aircraft and the preset linear path or/and the arc path is controlled for getting shorter and shorter, moreover, the flight direction of the aircraft is controlled for converging to the linear direction or/and the arc tangential direction. The method is advantaged in that easy control is realized, the aircraft is not required to fly overa certain point at a certain time, so that requirements of the small-sized aircraft for effectively following the preset path under the premise of being vulnerable to external environment such as thewind during the cruise level flight can be met, technical supports are provided for completion of preset tasks for the cruise level flight of the small aircrafts, and system reliability and accuracyare improved.

Description

technical field [0001] The invention belongs to the technical field of aircraft navigation guidance and control, and in particular relates to a method for generating lateral guidance commands for tracking straight lines and arc paths when an aircraft is in level flight. Background technique [0002] Due to their small size, low cost, and low ground support requirements, small unmanned aerial vehicles are widely used in military and civilian fields, such as military fields such as remote surveillance, detection, and strikes, as well as civil affairs such as aerial photography, plant protection, express transportation, disaster relief, and surveying and mapping. field, with broad military and civilian prospects. [0003] With the continuous expansion of the use of small unmanned aerial vehicles, especially the continuous improvement of the requirements for the degree of autonomy of unmanned aerial vehicles, the design of advanced navigation, guidance and control methods is the...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the existing technology, the present invention changes the traditional trajectory tracking algorithm that requires arriving at a certain place at a certain time, effectively avoiding the difficulty of accurate flight speed when the actual flight speed of a small aircraft is easy to change due to unknown changes in the wind speed of the environment. implementation problem

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