一种低轨卫星星地链路评估系统的设计

Design of a satellite link evaluation system for low rail satellite

低轨卫星移动通信是无线通信未来的主要发展方向之一。对低轨卫星星地链路特性的研究,可有效提高系统容量和组网应用效率,也迫切需要建立真实可信的实验验证平台。文章以低轨卫星通信系统星地链路验证及评估为目标,从低轨卫星星地链路特点出发,分析星地链路评估中关键指标,设计低轨卫星星地链路实验验证平台,可满足低轨卫星通信系统星地链路质量的评估要求,为低轨卫星移动通信系统的体制、组网协议等各类设计提供支撑。

LEO satellite mobile communication is one of the development directions in the future.The research on the characteristics of satellite-ground link of LEO satellite can effectively improve the system capacity and networking application efficiency.It is urgent to establish a credible experimental verification platform on satellite-ground link of LEO satellite.The aim of this paper is to verify and evaluate the satellite-earth link of LEO satellite communication system.Based on the characteristics of satellite-ground link of LEO satellite,this paper analyzes the key indexes in the evaluation of satellite-ground link,and designs an experimental verification platform for satellite-ground link of LEO satellite.This can meet the evaluation requirements of satellite-ground link quality in LEO satellite communication system,and provide support for various designs of LEO satellite mobile communication system.