卫星传输链路连通状态建模与仿真

Modeling and Simulation of Connectivity State of Satellite Transmission Link

通信卫星在信息的获取、传输、交换和应用中尤为重要。为保证卫星在有限时间将数据下传至地面站以完成数据传输任务,使用计算机仿真对卫星通信链路的连通性进行分析建模与仿真。通过选择5个地面站,实时仿真出轨道倾角为60°与97°时卫星与地面站通信的时间及可通信地面站的名称。有利于地面站对即将过站的卫星作出预警并合理规划数据接收的准备工作,为星地数据传输规划提供有力的参考。

Communication satellites are particularly important in the acquisition,transmission,exchange and application of information.In order to ensure that the satellite can transmit data down to the ground station in limited time to complete the data transmission task,computer simulation is used to analyze,model and simulate the connectivity of satellite communication links.By selecting five ground stations,the time of communication between satellites and ground stations and the name of ground station that can communicate are simulated in real time when the orbital inclination angle is 60° and 97°.It is helpful for the ground stations to give early warning to the satellites about to pass the station and reasonably plan the preparation work of data receiving,which provides a powerful reference for the planning of satellite-ground data transmission.