基于FPGA的高速数据采集系统设计实现

Design and Implementation of High Speed Data Acquisition System Based on FPGA

介绍了一种基于FPGA的高速数据采集电路;该电路以FPGA为核心控制器,采用VHDL语言对其模块化编程,控制AD9254模数转换电路对雷达视频回波信号进行高速采集,并转化为并行数据;数据在FPGA中经过合并、缓存、分离、编帧处理后存入Flash存储器;上位机利用PCIE卡读取数据进行测试分析,结果证明了它可以高速、准确的对信号进行采集,达到了设计的要求。

a FPGA--based high--speed data acquisition circuit is Introduced. FPGA is the circuit core controller, by using VHDL language for its modular programming, controlling AD9254 analog--to--digital conversion circuits for high--speed data acquisition radar video echo signal, and converted into parallel data; After the merger, the cache data in the FPGA separation The knitting frame processing is stored in the Flash memory. Host computer read data for test analysis by the PCIE card, the results proved it at high speed and accurate signal acquisition, to achieve the design requirements.