英语演讲(关于无人机的).ppt

UAV(unmanned aerial vehicle)UAVthe introduce of UAV the use of UAVthe development of UAVthe study of UAV What Is a UAVAn unmanned aerial vehicle(UAV),commonly known as an aircraft without a human pilot aboard.What Is a UAVIts flight is controlled either autonomously by onboard computers or by the remote control of a pilot on the ground or in another vehicle.What Is a UAVThe typical launch and recovery method of an unmanned aircraft is by the function of an automatic system or an operator on the ground.Historically,UAVs were simple remotely piloted aircraft,but autonomous control is increasingly being employed.What Are UAVs Used For?UAVs are commonly used in both the military and police forces in situations where the risk of sending a human piloted aircraft is unacceptable,or the situation makes using a manned aircraft impractical.What Are UAVs Used For?They are also used in a small but growing number of civil applications,such as policing and firefighting,and nonmilitary security work,such as surveillance of pipelines.UAVs are often preferred for missions that are too dirty or dangerousfor manned aircraft.typesGlobal Hawk-UAVX-47A&X-47B UCAS UAVX-43B UCAVProwler II-UASUAV development Sensor fusion:Combining information from different sensors for use on board the vehiclecommunicationCommunications:Handling communication between multiple agents in the presence of incomplete and imperfect informationavoid the obstaclesPath planning:Determining an optimal path for vehicle to go while meeting certain objectives and constraints,such as obstaclesUAV development Task Allocation:Determining the optimal distribution of tasks amongst a group of agents,with time and equipment constraintsdevelopedMost early UAVs are not autonomous at all.In fact,the field of air vehicle autonomy is a recently emerging field,whose economics is largely driven by the military to develop battle ready technology for the warfighter.studyAn unmanned aircraft system(UAS)includes ground stations and other elements besides the actual aircraft.the things that we study is how to communicate among the elements.Thanks!