基于RAID-5的机载阵列存储技术

Airborne Array Memory Technology Based on RAID-5

在现有的机载环境下,对空中复杂环境的电磁信号的采集记录信息量巨大,往往无法在一次的飞行试验中实时分析所获取的信息。大容量实时信息采集存储的必要性越来越得到重视,在复杂环境中,各个波段的信号混叠预处理之后的数据需要在地面恢复重演。介绍了一种基于COM-E模块+Xilinx K7系列FPGA+RAID控制器+XMC存储模块架构的存储系统,模块化的设计更容易维护和日后升级使用。通过RAID-5的阵列管理方式灵活控制工作模式,提高存储速率。系统的实时写入带宽大于3GB/s,可以作为机载环境下采集设备后端的高速存储设备广泛应用。

In the existing airborne environment,the information collection and record quantity of electromagnetic signals in complex air environment is huge,and it is often impossible to analyze the acquired information in real time in one flight test.The necessary for large-capacity real-time information acquisition and storage is getting more and more attention.In complex environment,the data after preprocessing of each band's signal are needed to be resumed on the ground.This article describes a storage system based on COM-E module+ Xilinx K7 series FPGA+RAID controller+XMC storage module architecture,and modular design is easier to be maintained and upgraded for the future.The array management of RAID-5 is used to flexibly control the working mode and improve the storage rate.The real-time write bandwidth of the system is greater than 3 GB/s,and it can be widely used as a high-speed storage device at the back of acquisition equipment in airborne environment.