Vertical landing track design method for unmanned aerial vehicle

The present invention provides a method of designing landing UAV longitudinal track belongs to the field of flight control, comprising: a step of: establishing a stable Ping Heng state equations UAV landing UAV's in accordance with kinematics; Step two: using Nonlinear programming method for designing landing UAV decline phase of the longitudinal track; step three: design flare altitude trajectory exponential phase, according to the designed pitch angle command and leveled track phase angle trim value, nonlinear equations obtained no vertical landing aircraft leveled stage track; step four: the decline phase of a comprehensive track and leveled landing stage, get landing UAV vertical trajectory as a whole. The present invention increases the margin of safety margin and manipulating the angle of attack of the elevator, the guide UAV facilitate accurate and safe landing for both height and pitch angle decrease landing speed control algorithm and landing performance comprehensive analysis, efficient use of mathematical software designed to avoid the traditional experience of trial and error.