基于FPGA的微弱信号快速采集处理方法  

Weak Signal Processing Methods of Fast Acquisition Based on FPGA

作　　者：曹学友[1] 祖静[1] 田壮[1] 梁永烨[1] 

机构地区：[1]中北大学电子测试技术国家重点实验室,太原030051

出　　处：《电子器件》2014年第4期654-657,共4页Chinese Journal of Electron Devices

摘　　要：针对微弱信号的采集慢,处理困难等问题,提出了一种基于FPGA的采集处理方法,以累加平均算法为基础,在FPGA内部编程设计双口RAM缓冲累加控制模块,对采集到的信号做预处理,然后与PCI模块握手通信,完成数据的传输,最终由上位机做数据处理分析。经过实验调试验证,此方法可以有效地采集微弱信号,并对其进行处理分析。为微弱信号的采集处理提供了新的方法。In view of slow acquisition of the weak signals,processing difficulties and other related issues,based on FPGA,an acquisition processing method is presented. The method is founded on the paris of the cumulative average algorithm. In order to be pretreated the collected signal a dual port RAM buffer accumulation control module is designed inside the FPGA programming. It completes the data transmission under shaking hands with PCI module. The PC can analyse the final signal data. Proven by debugged experiments,this method can collect the weak signal effectively,and analyse the signal data.

关 键 词：微弱信号 采集处理 FPGA 累加平均 

分 类 号：TP334[自动化与计算机技术—计算机系统结构]