基于FPGA高速数据采集与存储系统的设计

Design of High Speed Data Acquisition And Storage System Based on FPGA

为了提高系统对数据的采集速率,提出了一种基于FPGA的高速数据采集系统;利用FPGA实现对12bit的A/D转换器ADC12D800的控制,使用A/D转换器的1.6Gsps双沿采样工作模式来完成对400MHz以下高频信号的数据采集;把采集到的数据传递给FPGA,FPGA通过设计数据存储方式使数据得已缓存,来降低高频数据传输速率,使数据能够经USB传至PC机来实现高频信号地实时采集与存储;实验结果表明本系统可以实时、高效地完成数据的采集与存储,并且可广泛应用到雷达、通信、电子对抗等领域。

In order to improve the data acquisition rate of the system,this thesis introduces a high-speed data collecting system based on FPGA,which uses FPGA to control A/D converter ADC12D800 of 12bit,uses dual-edge sample mode of 1.6Gsps to complete the acquisition of high-frequency of 400 MHz.Pass the collected data to FPGA and the FPGA can reduce data rate by designing the way of data storage and making the data cached and then the data is transmitted via USB to a PC to realize the real-time data collection and storage for highfrequency signals.Results of experiments show that it can be applied to data-collecting and storage in real-time and efficiently,and this system can be widely used in the fields of radar,communication,electronic warfare and so on.