Research On The Security Of UAV Swarm Positioning System

In recent years,with the rapid development of UAV swarm,it has been widely used in military and civil fields.In the military field,UAV swarm has gradually replaced the existing UAVs to perform combat tasks;in the civil field,UAV swarm has gradually played an important role in UAV lighting performance,pesticide spraying,express delivery,power inspection and other aspects.At present,there are many terrorist attacks of UAV swarm all over the world.The security of UAV swarm needs to be paid more attention.This paper analyzes the security of UAV swarm location sensing system from four aspects: single UAV sensor,UAV communication link,UAV swarm formation mode and UAV ad hoc network.On this basis,in order to resist the attack of hostile UAV swarm,a countermeasure of UAV swarm attack based on satellite signal interference is proposed,and the experimental verification is successfully carried out on the selfdeveloped UAV swarm security simulation platform.In order to realize the security protection of friendly UAV swarm,the existing AODV routing protocol is improved,and a secure routing technology for UAV ad hoc network is proposed.The details are as follows:(1)The simulation platform of UAV swarm security based on ROS is built to carry out the simulation experiment of UAV swarm location sensing system.Using the ROS message topic mechanism,the GPS positioning process is simulated.Compared with other simulation platforms,the platform focuses on the simulation of UAV location sensing process,which is more suitable for the research of UAV swarm location sensing system.(2)Aiming at the rapid attack of UAV swarm,this paper proposes a counter measure based on satellite signal interference to make hostile UAV swarm collide.By sending GPS deception signal to UAV swarm,this method can induce two UAVs to fly to the designated position in a short time,and collision occurs during flight.Compared with other attack countermeasures,this technology has the advantages of simple operation,fast effect and low cost.(3)Aiming at the forgery identity attack,forgery fake RRER attack and fake route reply attack of UAV ad hoc network,this paper adds network behavior characteristics for AODV routing protocol,improves the security of routing protocol,and uses NS2 software for simulation detection.Finally,experiments show that the improved secure routing protocol has good detection performance,and has little impact on network performance.