Unmanned aerial vehicle formation communication-oriented trajectory generation and tracking method and system

Abstract

The invention provides an unmanned aerial vehicle formation communication-oriented trajectory generation and tracking method, which comprises the following steps of S1, constructing an unmanned aerialvehicle communication system model, and re-establishing communication between a source unmanned aerial vehicle and a target unmanned aerial vehicle by adopting a relay unmanned aerial vehicle; S2, predicting tracks of the source unmanned aerial vehicle and the target unmanned aerial vehicle, and transmitting the tracks to the relay unmanned aerial vehicle in real time; and S3, planning the trackof the relay unmanned aerial vehicle in real time according to the predicted tracks of the source unmanned aerial vehicle and the target unmanned aerial vehicle. The invention further provides a unmanned aerial vehicle formation communication-oriented trajectory generation and tracking system. The method and the system have the beneficial effects that a method for reestablishing stable connectionis provided for the conditions that shadows and fading exist in a low-altitude environment and links of the two communication unmanned aerial vehicles are disconnected in a severe environment, and theassumption that a source node and a destination node of traditional communication are fixed is broken through.

Description

technical field [0001] The invention relates to unmanned aerial vehicles, in particular to a trajectory generation and tracking method and system for formation communication of unmanned aerial vehicles. Background technique [0002] Low-altitude and high-speed civilian drones have played an important role in many fields such as logistics transportation, party performances, and live broadcast of events. UAVs inevitably encounter complex communication environments in the process of performing some tasks. Compared with fixed base stations on the ground, UAVs have the characteristics of high mobility and flexible deployment, so UAVs are widely used in various applications Among them, drone relay in emergency conditions, data offloading from satellites in hotspot areas, etc. [0003] In wireless communication, relaying is a method to improve the communication throughput of the system and help the system that lost the direct transmission link due to channel changes to re-communic...

AI Technical Summary

Problems solved by technology

[0009] However, when a high-speed moving UAV is flying at low altitude, shadow fading will occur when encountering occlusion, and the communication will be interrupted when the environment is complex, that is, the communication of the high-speed mobile UAV is interrupted, and the link connection cannot be re-established, resulting in communication interruption.

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