基于磁盘阵列的超高速SAR原始回波数据记录技术研究

该文介绍了基于磁盘阵列的合成孔径雷达超高速原始回波数据记录器的结构组成、工作原理及性能特点，讨论了两种数据包的分配方案：基于先后顺序的数据包分配方案和基于统计特性的动态数据包分配方案，并指出了这两种方案各自的优缺点。最后，给出了两种方案实现结果的性能参数对比表。

关键词：SAR原始数据；高速数据记录；磁盘阵列

Abstract: In this article, an ultra-high speed SAR raw data recorder based on disk array is introduced, including its construct, working principle, and main features. Two kinds of data packet allocating method are proposed: the sequential allocating method and a dynamic allocating method based on statistical characteristics of the recording ability of each disk, also, the advantages and disadvantages of each method are pointed out. The performance table of two methods is put forward at the end of this article.

Key words：SAR raw data; High speed data recording; Disk array