In order to solve the problem that the remote sensing camera image data for the frequency of 100MHz high-speed aerospace instantaneous parallel storage

a multi-channel high-speed short blanking period of the CCD image data storage method. This method to FPGA for data processing and control of the core

the first image data from various quarters parallel storage to SDRAM array

and then by road to read out image data stored by the capture card to the host's hard disk; the input image data into memory bit wide SDRAM read and write clock frequency is reduced to approximately of the original SDRAM capacity increase of times; using string conversion and string conversion operation combined with the asynchronous FIFO data interface of different clock domains to address the high speed image data non-integer multiple of the bit wide conversion problems

and given a minimum depth of SDRAM lowest operating frequency and asynchronous FIFO formula. Research and application results show that the design meets the application requirements

and has been successful in a particular space camera linear CCD ground inspection system

in parallel to receive the total data rate up to 4.13Gb / s.