Composite Identification Method for Unmanned Helicopter Flight Dynamics Model

Abstract

The invention discloses a compound identification method of an unmanned helicopter flight dynamical model and belongs to the field of unmanned helicopter dynamical modeling, and the method is characterized in that an unmanned helicopter, a flight control computer, a sensor group, an airborne data broadcasting station, a ground data broadcasting station, a ground station, a remote controlled transmitter and a remote controlled receiver are utilized, wherein a remote controlled command of a ground pilot is in charge of stimulating the unmanned helicopter; an automatic control command of the flight control computer is used for maintaining the unmanned helicopter at the predetermined flight speed, and ensuring the flight safety; and the remote controlled command and the automatic control command are combined by the flight control computer to obtain a steering engine command, so as to manipulate the unmanned helicopter to finish an identification test. In the compound identification methodprovided by the invention, the remote controlled command of the ground pilot and the automatic control command of the flight control computer are simultaneously introduced, so as to ensure the remotecontrolled command and the automatic control command to be mutually matched, thus the flight dynamical model of the unmanned helicopter can be accurately and safely identified.

Description

technical field [0001] The invention is a method for identifying the flight dynamics model of an unmanned helicopter, which can safely, accurately and fully identify the flight dynamics model of the unmanned helicopter. It is mainly used in technical fields such as aerospace and drones. Background technique [0002] The flight dynamics model of an unmanned helicopter reflects the control response characteristics of the helicopter to the control input in the flight state. The traditional method is that during the flight of the helicopter, the pilot applies manipulation instructions to the helicopter to stimulate the helicopter to make a dynamic response. This method has been successfully demonstrated on a manned helicopter. [0003] However, this method is difficult to apply on unmanned helicopters. The main reason is that, unlike manned helicopters, the operators of unmanned helicopters need to observe and operate the helicopter with the naked eye on the ground. Therefor...

AI Technical Summary

Problems solved by technology

However, constant acceleration, accurate acceleration distance and flight speed maintenance after the start of the experiment are all observed and manipulated by ground operators, and its accuracy is difficult to guarantee

In addition, since the constant acceleration method cannot solve the problem of the helicopter flying out of sight, the time of the experiment is very limited, so it is difficult to sufficiently stimulate the helicopter

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