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Studied for the high speed data acquisition system, based on the acquisition rate this thesis introduces a high-speed data collecting system based on FPGA, which uses FPGA to control A/D converter ADC12D800 of 12 bit, uses dual-edge sample made of 1.6Gsps to complete the acquisition of high-frequency of 400MHZ , reduces data rate by designing the way of data storage and is transmitted via USB to a PC to realize the real-time data collection and storage for high-frequency signals. Results of experiments show that it can be applied to data-collecting in real-time and efficiently, and can be applied to the fields of radar, communication, electronic warfare and so on.