Flight control method for small unmanned aerial vehicle

Abstract

The invention provides a flight control method for a small unmanned aerial vehicle. A homotaxial MEMS gyroscope, a barometer and a single-point GPS receiver are adopted as sensors, and the unmanned flight of the small unmanned aerial vehicle is realized through reasonable collocation and control design. In the side channel control, the homotaxial MEMS gyroscope forms a certain angle with z axis of a vehicle body coordinate system and a certain angle with x axis of the vehicle body coordinate system in the aerial vehicle longitudinal plane, so that the stability of the side channel of the small unmanned aerial vehicle is ensured, and then the small unmanned aerial vehicle can set a route and fly by utilizing GPS position information. In the longitudinal channel control, a derivative network is constructed to the barometer for damping the long period heaving vibration of the small unmanned aerial vehicle, and then the small unmanned aerial vehicle can set a height and fly by utilizing the GPS height. The method is particularly suitable for autonomous flight control of the small unmanned aerial vehicle which does not form a miniature inertial navigation system. The invention realizes the progress that the small unmanned aerial vehicle can fly autonomously according to a planned air landing site with the least sensors.

Description

technical field [0001] The invention belongs to the technical field of aviation vehicle navigation, guidance and control, and particularly relates to MEMS gyroscopes, barometers, and single-point GPS measuring equipment, and is suitable for autonomous control of various small unmanned aerial vehicles of conventional fixed wing types. Background technique [0002] Small unmanned aerial vehicles have the advantages of small scale, low cost, and easy cluster cooperation, and can meet military needs such as low consumption, low casualties, and precise strikes. By modifying different airborne sensors, special tasks such as attack route reconnaissance, point target detection, urban combat, communication monitoring, electronic jamming and ground attack can be completed. At the same time, small unmanned aerial vehicles also have broad prospects for national economic application. Small unmanned aerial vehicles are equipped with remote sensing equipment such as aerial cameras, which ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the deficiencies of many sensors and complex algorithms in the existing small unmanned aerial vehicle flight control system, and provide a simple and applicable small unmanned aerial vehicle control method

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