Aimed at multicenter, high speed image data of certain space remote sensing camera, a new TDICCD image data storage system was proposed in this paper. Firstly, the system uses FPGA controlling SDRAM array to cache image data in parallel, then according to received commands, sends certain channel' s image data to the acquisition card serially to store the image data into SCSI hard disk. A TDICCD image data storage system with five channels is developed, data transmission speed is up to 96M, total effective data rate is up to 2. 95Gb/s, single channel storage depth is up to 7810 rows. The experimental results indicate that this system work stably, high effectively and can meet the requirements of storing multicenter high speed TDICCD image data.%针对某空间遥感相机图像数据输出通道多,传输数率高的特点,设计了一种多路高速TDICCD图像数据采集系统,并应用于该相机的地采设备中；设计采用了并串相结合的方式,首先利用FPGA控制SDRAM阵列实现多路高速图像数据的并行采集,然后根据上位机命令,将各路图像数据串行发送到采集卡,采集卡将数据写入SCSI硬盘完成最终存储；实际完成了并行5通道,传输速率高达96M的TDICCD图像数据存储；5通道有效数据达到2.95Gb/s,单路存储深度为7810行数据；实验证明该系统工作稳定,灵活可靠,能按需存储图像数据,满足了多路高速TDICCD图像数据存储要求.
展开▼
