The invention discloses an unmanned aerial vehicle flight route offline and online hybrid optimization method for secure communication, and the method comprises the following steps: S1, an offline process: on the basis of a probability sight distance channel model, considering an unmanned aerial vehicle downlink secure communication scene with potential eavesdroppers, constructing a convex optimization problem, with the target of maximizing the safety communication rate of the minimum user, obtaining the flight path and communication scheduling of the unmanned aerial vehicle through optimization, with the obtained flight path of the unmanned aerial vehicle being composed of a series of path points and line segments connecting the path points; and S2, an online process: fixing the path points of the unmanned aerial vehicle obtained in the offline process, constructing a linear programming problem at each path point without changing the flight direction of the unmanned aerial vehicle, and maximally updating the minimum user by adjusting the flight speed of the unmanned aerial vehicle in the remaining road sections and the user communication scheduling time, namely the safe communication rate. According to the off-line and on-line hybrid optimization method, the safety communication rate of the unmanned aerial vehicle is effectively improved.

    本发明公开了一种面向安全通信的无人机飞行路线离线在线混合优化方法,包括以下步骤:S1:离线过程:在概率视距信道模型基础上,考虑存在潜在窃听者的无人机下行链路安全通信场景,构建一个凸优化问题,目标是最大化最小用户的安全通信速率,优化得到无人机的飞行轨迹和通信调度,得到的无人机的飞行轨迹是由一系列路径点和连接路径点的线段构成;S2:在线过程:固定由离线过程获得的无人机路径点,然后在每个路径点处,不改变无人机飞行方向,构建一个线性规划问题,通过调节无人机在剩余路段的飞行速度和用户通信调度时间来最大化更新最小用户:安全通信速率。本发明的离线在线混合优化方法,有效提升无人机的安全通信速率。


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    Titel :

    Unmanned aerial vehicle flight route off-line and on-line hybrid optimization method for secure communication


    Weitere Titelangaben:

    面向安全通信的无人机飞行路线离线在线混合优化方法


    Beteiligte:
    ZHANG GUANGCHI (Autor:in) / XU YUXUAN (Autor:in) / CUI MIAO (Autor:in) / WANG RIMING (Autor:in) / LIU SHENGHAI (Autor:in) / WANG KUN (Autor:in)

    Erscheinungsdatum :

    2021-12-07


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    H04B TRANSMISSION , Übertragung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS




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