An energy optimization method for fixed-wing UAV communication process

Abstract

The invention discloses an energy optimization method for the communication process of a fixed-wing unmanned aerial vehicle. Firstly, the model equations of the unmanned aerial vehicle under the conditions of fixed height and variable height are deduced through the conversion of the coordinate system of the unmanned aerial vehicle; The channel equation in the process of man-machine communication; establish the energy consumption equation of the UAV engine; after the required equations are established, describe the research problem as a nonlinear optimal control problem with continuous state inequality constraints and equality constraints; finally The optimal control problem equation is converted, and the UAV wireless communication problem is transformed into a typical mathematical problem of nonlinear optimal parameter selection, and then solved by the gradient method to minimize the energy loss of the UAV. Compared with time optimization, the optimized energy trajectory is more stable and the energy consumption is much lower.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to an energy optimization method for a communication process of a fixed-wing unmanned aerial vehicle. Background technique [0002] Recently, unmanned aerial vehicle (UAV) wireless communication has been widely used and attracted increasing attention. The advantage of using UAVs for communication is that it offers significant performance compared to using fixed infrastructure, such as flexible deployment, strong line-of-sight (LoS) links, and in most cases the link can be established, thereby Make it possible through direct communication. It is also widely used, and many new applications have emerged in civil and commercial fields, including weather monitoring, forest fire detection, freight transportation, emergency search and rescue, communication relay, etc. Therefore, UAV wireless communication is one of the most popular means of communication today. How to m...

AI Technical Summary

Problems solved by technology

[0005] Although the above articles use trajectory optimization to minimize the energy consumption of the UAV, most of them use the convex optimization method to solve the problem, but it can be found that the dynamics and motion of the UAV system have not been considered in their articles. equations, that is, they lack research on the attitude of the UAV itself

Images