高速多通道数据采集传输系统的设计

摘要

设计了一种基于FPGA与DSP的高速多通道实时数据采集传输系统。该系统通过FPGA实现对时钟、ADC、DSP等芯片的功能配置，采集数据由FPGA预处理后通过EMIF接口传送至DSP，并完成后续的复杂信号处理。该系统最高数据采集速率可达500 MSPS，FPGA与DSP之间可实现高速率的数据传输。实际测试结果表明，该系统实现了多通道数据的实时同步采集、传输与处理，数据采集达到较高性能，能够满足当前复杂电磁环境下精确制导雷达数据处理分析的需求。%One kind of real-time high-speed multi-channel data acquisition transmission system is designed based on FPGA and DSP. The function of the clock, ADC and DSP is configured by FPGA in the system, the data pre-processed by FPGA transmitted to DSP through EMIF interface and DSP complete the subsequent complex signal processing. The highest analog-digital conversion rate of the system can be up to 500 MSPS and the high transmission speed between FPGA and DSP can be achieved. The actual test results show that the system has realized the multi-channel high-speed, synchronous, real-time data acquisition, transmission and processing.The performance of the system can satisfy the data processing requirements of the precision analysis radar under the current complex electromagnetic threat environment.