微小卫星固存控制系统设计与实现  

Design and realization of microsatellite storage control system

作　　者：孙金傲 陈茂胜 邹吉炜 孔令波 Sun Jin'ao;Chen Maosheng;Zou Jiwei;Kong Lingbo(Chang Guang Satellite Technology Co.,Ltd.,Changchun 130000,China)

机构地区：[1]长光卫星技术股份有限公司,长春130000

出　　处：《电子测量技术》2023年第10期1-5,共5页Electronic Measurement Technology

基　　金：吉林省科学技术厅项目(20210201114GX)资助。

摘　　要：针对微小卫星对在轨数据采集、存储、下传等功能灵活性的迫切需求,掌握星上单机在不可监测弧段的状态数据信息,提出了一种基于FPGA的星载固态存储器控制系统。基于Verilog HDL语言通过自顶向下的RTL级设计,实现将全轨道遥测及GPS数据的实时存储,并能通过上注指令对NAND Flash中特定地址段数据进行下传,从而在地面进行多角度的分析及挖掘。经多发卫星型号在轨验证,已经实现批产,该固存控制系统能够连续存储48.8天延时遥测和45.2天GPS数据,在满足数据吞吐率的基础上,误码率低至8.16×10-9,通过增加仲裁、状态超时、坏块管理和三模等功能,使其具有超高的鲁棒性、稳定性、抗单粒子特性,该系统完全满足新一代微小卫星对固存灵巧搭载的应用要求。In view of the urgent demand of small satellite for the flexibility of data acquisition,storage and down transmission,a control system of satellite solid state memory based on FPGA is proposed.The control system can realize the real-time storage and down transmission of small satellite in orbit data.Based on Verilog HDL language,through the top-down RTL level design,the full orbit telemetry and GPS data can be stored in real time,and the specific address segment data in NAND Flash can be transmitted down through the upper note instruction,so as to carry out multi angle analysis and mining on the ground.After the on orbit verification of multiple satellite models,batch production has been achieved.The fixed storage control system can continuously store 48.8 day delay telemetry and 45.2 day GPS data.On the basis of satisfying the data throughput rate,the bit error rate is as low as 8.16×10-9.By adding arbitration,state timeout,bad block management and three mode functions,the system has super high robustness,stability and single particle characteristics.The system fully meets the application requirements of the new generation of micro satellites for fixed storage and smart carrying.

关 键 词：微小卫星 固态存储 FPGA Verilog HDL NAND Flash 

分 类 号：TN492[电子电信—微电子学与固体电子学]