摘要
针对采样路数的不断增多和数据帧格式越来越复杂的问题,提出了一种基于FPGA的通用化通道切换方法。该方法以FPGA为控制核心,利用内部ROM资源,有效简化了采集系统通道切换的复杂度。论述了采集系统的设计思路,并对详细描述了采集系统的硬件电路设计和模拟开关地址编码设计。通过试验测试表明该采集电路满足设计要求,具有高采样精度和较高的应用价值。
For the problem of increasing number of sample channel and the more and more complex frame format,a general channel switching method is proposed based on FPGA. In the method, FPGA is the control core,and using the internal ROM resource effectively simplifies the complexity of channel switch in the multichannel acquisition system. This paper analyzes the acquisition system design,and describes the design of hardware circuit and analog switch address coding in detail. The test result shows that the acquisition circuit meets the design requirements with high sampling precision and application value.
出处
《火力与指挥控制》
CSCD
北大核心
2014年第5期142-145,共4页
Fire Control & Command Control
基金
国家自然科学基金资助项目(50905169)
关键词
多通道采集系统
FPGA
通道切换
可编程
multichannel acquisition system
FPGA
channel switch
programmable