针对空间相机地面检测设备数据信息量大、存储速度快的特点, 采用性能优良的NAND型Flash为存储介质, FPGA为控制核心, 实现了高速大容量存储系统的设计。针对数据存储速度的提升, 引入双plane操作、并行及流水线的方式控制Flash阵列。通过对Flash芯片中坏块特点的研究, 引入了坏块管理部分。实验结果表明, 该系统能够完成空间相机大量原始数据的高速记录工作, 保证了数据记录的实时性及可靠性。

Considering that the ground test equipment for space cameras has the characteristics of large amount of data and rapid storing velocity, the design of a high-speed large capacity storage system is implemented by using FPGA as the control core and the solid NAND Flash with excellent performance as a storage medium. To improve the storing velocity of the system, the Flash array is controlled by using two-plane operation, parallel technology and pipeline technology. The system uses bad block management after analyzing bad block feature of Flash. Experimental results show that the system can accomplish the record of a large number of high-speed original data from space camera, which ensures the real-time performance and reliability of data recording.