Design and Implementation of High-Speed Signal Acquisition Circuit Based on FPGA

To solve the problem of large volume of data,real-time,transfer rate and other issues in the high-speed signal collection process,a high-speed signal acquisition system based on FPGA is designed. According to the method of topdown,FPGA is divided into several functional modules. The designing method and controlling flow of each module are discussed in detail. The VHDL language is adopted in the FPGA module. Software design is completed in the integration circumstance of Xilinx ISE,and system simulation is completed by Modelsim simulation tool. Signal acquisition experiment shows that: the signal acquisition system's sampling accuracy is 8 bits,sampling rate is 600 KSPS,and has a simple circuit,high acquisition accuracy and sampling rate,strong reliability and stability,good versatility and portability,and it can achieve the desired effect fully. Besides,it has a certain practical value and broad application prospects.