Research on Reliability Modeling of Image Transmission Task Based on UAV Avionics System

In recent years, the UAV industry enjoys a rapid development. UAV has been widely used in military and civilian fields such as surveillance, patrol, battlefield attacking and environment monitoring. However, it cannot finish the jobs if the multimedia transmission task, especially the image transmission task, doesn't work properly. The image transmission task ensures that UAV captures image information successfully from the environment. Therefore, as one of the important indexes to judge the multimedia quality, the reliability of image transmission task determines the mission execution capability of UAV. And it is of great significance to research the reliability of image transmission task of UAV. Since the image transmission task is executed on the basis of avionics system, this paper will study the reliability modeling of image transmission task based on UAV avionics system. Firstly, the UAV image transmission link is introduced. The network structure of UAV avionics system is presented later. And then, the task model and reliability model of image transmission task are proposed. Finally, the reliability of image transmission task is analyzed according to the reliability model.