The portable data acquisition test system can conveniently and reliably realize the transmission and storage of the space remote data. This system adopts XILINX Virtex II PRO series FPGA as the data processing and control center. The storage and transmission control is also accomplished by FPGA. This system can work in two modes such as offline storage and on-line transmission. The structure of memory device is based on FLASH electronic hard disc

and it has the advantage of shockproof and portable and so on

which can meet the requirements of portable transfer. The input interface of the system is LVDS interface and optical fiber. In order to enhance the system's versatility

PC communication terminal is based on USB bus and Ethernet communication. By the experimental verification

the online data transfer rate of the system is up to 48MB/s and the speed of offline storage can reach 35MB/s.