设计了以FPGA(现场可编程门阵列)为核心逻辑控制模块的高性能数据采集系统,该系统除了可完成2 4路最大采样频率为10 0 k Hz(精度16位)的模拟信号采集和8路宽范围频率信号采集,还具有较强的数字信号处理能力和一定的容错、自检功能。FPG...设计了以FPGA(现场可编程门阵列)为核心逻辑控制模块的高性能数据采集系统,该系统除了可完成2 4路最大采样频率为10 0 k Hz(精度16位)的模拟信号采集和8路宽范围频率信号采集,还具有较强的数字信号处理能力和一定的容错、自检功能。FPGA模块采用VHDL语言设计,在MAX+PLUSII集成环境中进行软件设计和系统仿真,本文给出了FPGA主要功能模块的仿真图形。展开更多
To overcome the shortcoming that the traditional frequency measurement method does not meet the requirement of equal precision, a design method of equal precision frequency meter based on FPGA is proposed. The system ...To overcome the shortcoming that the traditional frequency measurement method does not meet the requirement of equal precision, a design method of equal precision frequency meter based on FPGA is proposed. The system modules are all realized in Altera’s FPGA chip EP2C35F672C8. Experimental results show that the system can measure frequencies with equal precision in the whole frequency range, and the measurement error is small. It achieves the requirement of equal precision measurements.展开更多
文摘设计了以FPGA(现场可编程门阵列)为核心逻辑控制模块的高性能数据采集系统,该系统除了可完成2 4路最大采样频率为10 0 k Hz(精度16位)的模拟信号采集和8路宽范围频率信号采集,还具有较强的数字信号处理能力和一定的容错、自检功能。FPGA模块采用VHDL语言设计,在MAX+PLUSII集成环境中进行软件设计和系统仿真,本文给出了FPGA主要功能模块的仿真图形。
文摘To overcome the shortcoming that the traditional frequency measurement method does not meet the requirement of equal precision, a design method of equal precision frequency meter based on FPGA is proposed. The system modules are all realized in Altera’s FPGA chip EP2C35F672C8. Experimental results show that the system can measure frequencies with equal precision in the whole frequency range, and the measurement error is small. It achieves the requirement of equal precision measurements.
