Multi-constraint pneumatic deceleration control method for unmanned aerial vehicle

Abstract

The invention discloses a multi-constraint pneumatic deceleration control method for an unmanned aerial vehicle, and belongs to the technical field of flight control of unmanned aircrafts and cruise missiles. Aiming at the requirement of rapid pneumatic deceleration of the unmanned aerial vehicle under multiple constraints, control deviation information is obtained by calculating the deviation between the current flight state and a nominal trajectory based on missile-target relative horizontal distance, reference height, reference trajectory inclination angle and reference pitch angle data input by a reference trajectory. And integrating the height, the ballistic inclination angle and the attack angle deviation to obtain a comprehensive ballistic inclination angle control instruction. And designing a trajectory dip angle tracking and pitching attitude pilot composite pilot according to the control instruction to realize multi-constraint pneumatic deceleration control of the unmanned aerial vehicle. The method is suitable for the longitudinal trajectory tracking problem, and can meet the requirements of the aircraft for rapidly and stably tracking the nominal height and achieving the expected tail end speed and attitude; the method is easy to realize on a flight control computer through programming, and has relatively good engineering practicability.

Description

technical field [0001] The invention belongs to the technical field of flight control of unmanned aerial vehicles and cruise missiles, and relates to a multi-constraint aerodynamic deceleration control method for unmanned aerial vehicles. Background technique [0002] With the advancement of air defense technology, countries are vigorously developing new penetration technologies, such as cluster aircraft and cross-media aircraft. However, usually underwater vehicles or small swarm aircraft do not have the ability to fly in the atmosphere or have limited range, and it is difficult to reach the target area by their own power. It needs to be transported to the vicinity of the target area using an unmanned aerial vehicle. The launch of cross-water-air vehicles and swarm aircraft has high requirements on the position, height accuracy, speed, and attitude of the terminal launch of unmanned aerial vehicles. [0003] Due to the water impact characteristics of underwater vehicles a...

AI Technical Summary

Problems solved by technology

At present, there is no relevant information that can simultaneously satisfy the multi-constraint aerodynamic deceleration control method of an aircraft with position, altitude, speed and attitude constraints.

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