微纳卫星导航通信一体化系统设计与实现

Design and realization of micro/nano-satellite navigation and communication integrated system

为了提高微纳卫星资源利用率,考虑体积、质量及功耗等多方面限制和要求,提出一种适用于微纳卫星的导航通信一体化系统实现方案,将卫星遥测遥控、数据传输、导航定位等功能进行融合设计,给出该系统设计方法,并详细阐述硬件平台、软件架构、数据协议的实现方法。最后提出采用FPGA、ASIC等集成电路技术的产品实现技术途径,实现高集成、小型化、轻量化和低功耗。目前该设计已经成功应用于多个卫星型号,最长在轨工作时间超过两年,至今状态良好,可以推广至其他微纳卫星应用。

An implementation scheme of navigation and communication integrated system suitable for micro/nano satellite is proposed to improve the resource utilization of micro/nano satellite,in which the functions of telemetry,telecontrol,data transmission,navigation and positioning of the satellite are integrated,and the limits and requirements in volume,weight and power consumption of micro/nano satellite are considered.The design method of the system is given.The implementation methods of hardware platform,software architecture and data protocol are elaborated in detail.The technical realization approaches of products as adopting FPGA,ASIC and other integration circuit technologies are proposed to realize the high integration,miniaturization,light weight and low power consumption.The designed system has been used in multiple types of micro/nano-satellites,its longest working time in orbit is more than two years,and the satellite is still in good condition.The system can be expanded to other micro/nano-satellites.