A compact high-speed storage system for an airborne SAR

The technology of the miniature high-speed mass data storage for an airborne FMCW SAR is investigated in this study. The compact flash (CF) card with the light weight, high read/write speed, and large capacity is used as the storage medium in the data storage system. The major problem of high speed data storage is the irregular response time due to the internal overhead of the CF card and frequently cluster switching involving retrieving and updating of the FAT and FDT in the file system. Two techniques are presented to overcome these problems. The experimental results indicate that the miniature requirement of the data storage system is satisfied, the capability of high-speed storage is achieved.