基于Nand Flash的星载综合数据固态记录系统

发布时间：2018-06-06 03:08

本文选题：卫星有效载荷 + 固态记录系统　；参考：《电讯技术》2017年06期

【摘要】：在星载平台资源受限条件下,采用以FPGA+CPU为控制核心、Nand Flash为固态存储阵列的系统架构,实现了高速、大容量、高可靠的数据记录。针对传统双Plane操作与并行扩展对存储速度提升有限、芯片使用较多的问题,采用4级流水线方式控制Flash阵列。为解决标准传输协议传输效率低的问题,设计了一种自定义高速串行传输协议。为减缓空间辐射环境对存储数据的影响,采用了三模冗余、配置回读与部分重构等容错机制。对所提出系统进行的实验验证结果表明,该星载记录系统存储容量达36 Tbit,记录与回放速度分别达到16 Gbit/s与8 Gbit/s,传输误码率为10~(-12),传输包效率为96.7%,可作为通用存储系统以满足航天应用需求。
[Abstract]:Under the condition of limited resource of spaceborne platform, the system architecture with FPGA CPU as control core and Flash as solid state storage array is adopted to realize high speed, large capacity and high reliability data record. In order to solve the problem that the storage speed of traditional dual Plane operation and parallel extension is limited and the chip is used more frequently, a 4-stage pipeline is used to control the Flash array. In order to solve the problem of low transmission efficiency of standard transport protocol, a custom high speed serial transmission protocol is designed. In order to mitigate the impact of space radiation environment on the stored data, the fault-tolerant mechanisms such as triple-mode redundancy, configuration backreading and partial reconstruction are adopted. The experimental results of the proposed system show that, The on-board recording system has a storage capacity of 36 Tbit. the recording and playback speeds are 16 Gbit/s and 8 Gbit / s respectively. The transmission error rate is 10 Gbit / 12 and the transmission packet efficiency is 96. 7 Tbit. the system can be used as a general storage system to meet the requirements of space applications.
【作者单位】：中国西南电子技术研究所;
【基金】：中国西南电子技术研究所技术创新基金项目(H15017)
【分类号】：TP333;V446

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