摘要
对计数法测频的原理、FPGA的实现方法进行了描述,并进行了实验。通过分析实验结果,发现了计数法测频误差产生的根源。针对产生误差的原因,提出了减小误差的解决方案。
The principle of counting method of instantaneous frequency measurement, and the implementation based on FPGA are described. By analyzing the experimental results, the error cause of counting method of instantaneous frequency measurement is found. For the error cause, the solution of reducing the error is proposed.
出处
《测控技术》
CSCD
北大核心
2014年第9期154-156,共3页
Measurement & Control Technology
关键词
瞬时测频
计数法
误差分析
FPGA
时序图
VHDL
instantaneous frequency
counter measurement
error analysis
FPGA
timing diagram
VHDL
