空间太阳望远镜的星载固态存储器研制  

Development of Onboard Solid State Recorder for Space Solar Telescope

作　　者：王芳[1] 李恪[2] 苏林[3] 耿立红[1] 

机构地区：[1]中国科学院国家天文台,北京100012 [2]北京科学技术大学,北京100083 [3]中国科学院遥感所,北京100101

出　　处：《电子学报》2004年第3期472-475,共4页Acta Electronica Sinica

基　　金：国家高技术研究发展计划 (863计划 )基金 (No .863 2 .5 .1 .2 5)

摘　　要：空间太阳望远镜有五个载荷仪器 ,其每天产生的数据达 172 8GB ,数据流以固态存储器为核心在星上数据处理系统各单元间调度 ,完成缓存、压缩、存储和下传 .本文分析了对固态存储器的需求 ,建立了其状态机模型 ,并确定了总体设计方案 .根据该方案用DSP和FPGA构成控制逻辑 ,用DRAM芯片阵列构成存储模块 。The science data generated by five instruments onboard the space solar telescope is about 1728GB per day. Data flow passes through the onboard data handling system with the data storage unit called the solid state recorder as the core element to be buffered, compressed, stored and down-linked. The requirements for the solid state recorder were analyzed, the state machine model was made, which could reduce the system design in complexity, and the whole scheme was established. A ground functional prototype was completed according to above scheme with DSP and FPGA as the control part, and the DRAM chip array as the storage module. The system functions were emulated and proved.

关 键 词：星载固态存储器 数据存储 状态机 ADSP21060 DRAM 空间太阳望远镜 控制逻辑 数据处理 

分 类 号：P111.41[天文地球—天文学] TP333[自动化与计算机技术—计算机系统结构]