| 基于相位重合的全同步测频方法研究 |
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| 引用本文： | 黄冠中,李志强,尹园威.基于相位重合的全同步测频方法研究[J].仪表技术,2010(9):14-15,22. |
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| 作者姓名： | 黄冠中 李志强 尹园威 |
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| 作者单位： | 军械工程学院光学与电子工程系,河北石家庄,050003 |
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| 摘 要： | 文章对基于相位重合的全同步测频方法进行了研究。相位重合理论是目前比较流行的用于频率测量的理论,在检测被测信号与标频信号的相位重合脉冲后触发闸门,使计数闸门、被测信号和标频信号三者达到全同步,彻底消除了±1个字误差。相位重合检测电路、闸门、计数器等模块均在可编程逻辑器件FPGA中完成,使用方便,易于修改,经仿真达到了预期效果。
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| 关 键 词： | 频率测量 相位重合 全同步 FPGA |
Research of Complete Synchronization Frequency Measurement Method Based on Phase Coincidence |
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| HUANG Guan-zhong,LI Zhi-qiang,YIN Yuan-wei.Research of Complete Synchronization Frequency Measurement Method Based on Phase Coincidence[J].Instrumentation Technology,2010(9):14-15,22. |
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| Authors: | HUANG Guan-zhong LI Zhi-qiang YIN Yuan-wei |
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| Affiliation: | (Ordnance Engineering College,Shijiazhuang 050003,China) |
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| Abstract: | In this paper,the complete synchronization frequency measurement method based on phase coincidence is researched.The phase coincidence theory is very popular in the filed of frequency measurement.When the phase coincidence pulse is detected,the gate is triggered.And then the gate,the measured signal and the standard signal will reach complete synchronization.The error of ±1 will be eliminated.The phase coincidence detection circuit,the gate and the counters are completed in the FPGA.It is very convenient to use and easy to amend.This method about the frequency measurement achieves the expected effect by simulation. |
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| Keywords: | FPGA |
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