基于SOPC的多路并行同步数字信号采集系统设计

针对某型导弹武器装备在线检测系统的需求,以软、硬件可配置的SOPC（System on a Programmable Chip）嵌入式系统为平台,以较少的硬件资源消耗为前提,应用FIFO缓存和直接存储器传输（Direct Memory Access,DMA）技术,设计数据采集系统,实现对20路并行同步数字信号的快速采集,并利用现代DSP技术对采集的信号进行滤波处理,通过USB总线将处理后的信号送到工控机,基于LabVIEW软件在工控机上实现系统的在线检测功能。

Design of Acquisition System of Multi-channel Parallel Synchronous Digital Signal Based on SOPC

According to the demand of a missile on-line detection system,with hardware and software configurable SOPC embedded system as the platform,and with FIFO buffer and DMA as assistant technology,a multi-channel parallel synchronous digital signal acquisition system has been designed to realize the 20 parallel synchronous digital signal rapid timing acquisition under the precondition of less hardware resource consumption.The collected digital signals have been filtered and processed by using modern DSP technology,and then the signals have been transmitted to the industrial computer through the USB bus.The on-line detection function has been realized in the industrial computer based on LabVIEW software.