卫星高功能密度综合电子系统设计

微小卫星综合电子系统承载了卫星大部分功能，是卫星任务处理和控制的中心，未来新的智能化应用、星群应用、通信服务等需求也将由卫星执行，对综合电子系统提出了新的要求。分析了国外典型小卫星综合电子系统，具有功能综合度高、多数功能集中在一台计算机中、卫星功能软件化的特点。设计了基于软件定义的综合电子系统一体化结构，硬件采用高度集成的模块化设计，软件采用分层和组件化设计，将系统功能进行分层，通过软件定义组件的方式实现各层功能和业务。高功能密度综合电子系统由一个通用化的高性能硬件平台和各种可加载的APP软件组成，除传统功能外，还可扩展自主任务管理、星间组网和载荷管理等功能，不仅使卫星的集成度和功能密度大幅提升，还能实现卫星功能重构，达到一星多用、一星多能的目的，有利于紧急时期卫星系统快速构建与应用，对于未来星座组网应用也具有一定意义。

High functional density avionics system for satellites#br#

The micro satellite avionics system, which carries out most of the functions of the satellite, is the center of satellite mission processing and control. In the future, new intelligent applications, satellite cluster applications, communications services and other requirements will also be implemented by satellite, which puts forward new requirements for avionics system. The typical micro satellite avionics systems abroad were analyzed. It has the characteristics of high function density. Most functions are concentrated in one computer and satellite functions are software defined. The integrated structure of avionics system based on software definition was designed. The hardware was modularized with highly integrated design, and the software was layered and componentized. The functions and services of each layer were realized by means of software definition components. High functional density avionics system is composed of a general high performance hardware platform and various kinds of loadable APP software. In addition to traditional functions, it can also be extended to autonomous mission management, inter satellite networking and payload management functions. Not only the integration and functional density of satellites have been greatly improved, but also the functional reconstruction of satellites has been realized, achieving the goal of multi functions in one satellite. It can provide reference for future applications of constellation network.