新一代高通量卫星通信系统载荷关键技术研究

Research on key technology of new generation high throughput satellite communication system

随着商业竞争的不断加剧,更大容量以及更高灵活性成为了高通量(high throughput satellite,HTS)系统发展的主要目标,新一代的HTS系统即将进入到“Tbps”时代。在介绍HTS系统基本概念及组成的基础上,对HTS系统的发展历程进行了简要总结,按照能力和发展时期,HTS卫星的发展历程大致可划分为四代。重点结合新一代HTS系统的发展,从卫星载荷角度分析了高通量卫星载荷的关键技术,主要包括能够大幅提升系统通信容量的超大规模高性能多波束天线技术,能够提高组网及业务应用灵活性的跳波束通信技术、灵活载荷技术、数字透明转发处理技术以及能够优化系统和载荷设计的波束预编码技术和基于微波光子的星上转发技术等,旨在为我国新一代HTS系统的建设发展提供参考。

As business competition intensifies,greater capacity and flexibility become the main goal of HTS system,a new generation of HTS system is about to enter the ear of Tbps.On the basis of introducing the basic concepts and components of HTS system,this paper briefly summarizes the development history of HIS system.Combined with the development of new generation HTS system,the key technologies of HTS payload are analyzed from the perspective of satellite payload,incluing ultra-large-scale and high performance multi-beam antenna technology,beam-hopping communication technology and flexible payload technology,Digital Transparent Processor,beam precoding technology and microwave photon-based onboard transparent technology,which are designed to provide reference for the construction and development of a new generation of HTS system.