基于FPGA的多通道无缝采样分析技术的实现

IMPLEMENTATION OF MULTI-CHANNEL NON-GAPPED SAMPLING AND ANALYZING TECHNIQUE BASED ON FPGA

提出了基于现场可编程门阵列 (FPGA)的多通道无缝采样分析技术的实现方法 ,采取采样控制时序与数据处理分析控制时序分离 ,以及两组动态数据存储区的切换控制 ,由FPGA实现同步产生上述时序。解决了数据采集与处理的异步问题 ,使两者同步进行 ,实现了多通道同步无缝采样分析、采样窗口长度可调和通道扩展等功能。另外给出了基于FPGA芯片EP1K30TC144 3的一些实际运行结果 。

The implementation of multi-channel non-gapped sampling and analyzing technique based on field programmable gate array (FPGA) are proposed. It separates and synchronizes the clock of sampling control and that of data processing control and the switching control of two dynamic data memories, resolving the problem of asynchrony between data sampling and data processing and realizing their simultaneity as well as setting the sampling window width and the number of sampling channels. Some actual results based on the chip EP1K30TC144-3 are presented as a proof of the feasibility of this technique.