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Design of optical fiber acoustic emission signal acquisition and processing system
Author(s): 
Pages: 75-77
Year: Issue:  5
Journal: ELECTRONIC MEASUREMENT TECHNOLOGY

Keyword:  声发射检测数据采集与处理DSPCPLD;
Abstract: 针对数字式光纤声发射检测要求,本文设计了一种以DSP和CPLD为核心的信号采集与处理系统.该设计将DSP的高速信号处理能力与CPLD较强的控制能力相结合,利用DSP的DMA通道使数据采集与处理并行工作,实现信号的实时采集与处理.本文给出了系统硬件原理电路和主要的软件设计方案,讨论了CPLD时序控制设计及DSP处理系统中的关键技术问题.调试及仿真结果表明,系统具有设计简明、程序便于修改、CPU执行效率高等优点.
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