發(fā)布時間：2019-06-04 07:57

【摘要】：數(shù)據(jù)存儲設備是航天領(lǐng)域的關(guān)鍵設備之一,是各類航天設備進行數(shù)據(jù)采集、存儲以及在軌處理的重要的支撐平臺。容量大、速度快、功耗低、抗輻照和可靠靈活一直都是星載數(shù)據(jù)存儲設備的主要研究方向和目標。隨著航天科技的發(fā)展,以FLASH為主要存儲介質(zhì)的大容量固態(tài)存儲設備已經(jīng)成為當今航天設備數(shù)據(jù)存儲的主流方案之一。 本文依托國家863計劃某重大項目課題,研究目標為基于FLASH存儲介質(zhì)的星載高速大容量固態(tài)存儲器的設計與實現(xiàn)。該存儲器具有大容量、高速率、非易失以及低功耗等特點,系統(tǒng)結(jié)構(gòu)采用標準化、模塊化設計,具有可移植、可擴展的特性,滿足不同任務需求。 本文首先分析了國內(nèi)外相關(guān)領(lǐng)域現(xiàn)狀以及發(fā)展趨勢,采用FLASH芯片作為基本存儲介質(zhì),以FPGA為存儲陣列控制核心,設計出了一種容量為1Tbits的星載高速大容量存儲器。該設計方案采用了多級流水線以及數(shù)據(jù)并行處理技術(shù),提高了讀寫速度,并采用基于PowerPC的嵌入式系統(tǒng)對FLASH芯片壞塊進行處理,提高了系統(tǒng)整體性能,減輕了硬件設計負擔。本課題的預研成果為實際研制應用于星載的高速大容量存儲器以及有人參與的大規(guī)�？臻g應用奠定了堅實的基礎(chǔ),具有較好的指導和借鑒意義。
[Abstract]:Data storage equipment is one of the key equipment in the field of spaceflight. It is an important supporting platform for data acquisition, storage and in-orbit processing of all kinds of aerospace equipment. Large capacity, fast speed, low power consumption, radiation resistance and reliability and flexibility have always been the main research direction and target of on-board data storage equipment. With the development of space science and technology, large capacity solid state storage equipment with FLASH as the main storage medium has become one of the mainstream schemes of space equipment data storage. Based on a major project of the National 863 Plan, the research goal of this paper is the design and implementation of high speed and large capacity solid state memory based on FLASH storage medium. The memory has the characteristics of large capacity, high speed, non-volatile and low power consumption. The system structure is standardized, modular design, portable and extensible, to meet the needs of different tasks. In this paper, the present situation and development trend of related fields at home and abroad are analyzed. Using FLASH chip as the basic storage medium and FPGA as the memory array control core, a high speed and large capacity memory with 1Tbits capacity is designed. The design scheme adopts multi-level pipeline and data parallel processing technology to improve the speed of reading and writing, and uses the embedded system based on PowerPC to deal with the bad block of FLASH chip, which improves the overall performance of the system and reduces the burden of hardware design. The pre-research results of this subject have laid a solid foundation for the practical development of high-speed and large-capacity memory and large-scale space applications with participation, and have good guidance and reference significance.
【學位授予單位】：西安電子科技大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TP333

【引證文獻】

相關(guān)碩士學位論文 前1條

1 璩澤旭;高速大容量存儲系統(tǒng)關(guān)鍵技術(shù)研究與實現(xiàn)[D];西安電子科技大學;2013年

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本文編號：2492580