| 基于FPGA的多功能等精度频率计的设计 |
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| 引用本文： | 李红丽,马耀锋. 基于FPGA的多功能等精度频率计的设计[J]. 中州大学学报, 2010, 27(6): 120-122 |
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| 作者姓名： | 李红丽 马耀锋 |
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| 作者单位： | [1]中州大学实验管理中心,郑州450044 [2]中州大学信息工程学院,郑州450044 |
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| 基金项目： | 河南省教育厅网页原始性鉴别技术研究 |
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| 摘 要： | 根据等精度测频原理,本设计克服了基于传统测频原理的频率计的测量精度随被测信号频率的下降而降低的缺点。选用FPGA芯片通过VHDL编程实现,提高了测频系统的稳定性,可实现频率、周期、脉宽和占空比的等精度测量。仿真和试验结果表明,该系统具有较高的实用性和可靠性。
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| 关 键 词： | FPGA VHDL 等精度 频率计 |
Design of Multifunctional Equal Precision Frequency Meter with FPGA |
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| LI Hong-li,MA Yao-feng. Design of Multifunctional Equal Precision Frequency Meter with FPGA[J]. Journal of Zhongzhou University, 2010, 27(6): 120-122 |
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| Authors: | LI Hong-li MA Yao-feng |
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| Affiliation: | 1.Experiment Management Center,Zhongzhou University,Zhengzhou 450004,China;2.School of Information Engineering,Zhongzhou University,Zhengzhou 450004,China)) |
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| Abstract: | Based on equal precision frequency principle,this design avoids traditional cymometer＇s defect that precision declines as the frequency measured declines.This design uses FPGA chip and VHDL program to improve the stability of frequency detecting system and realize equal precision measurement of frequency,period,pulse width and duty ratio.It is proved that the system has better practicability and reliability. |
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| Keywords: | FPGA VHDL equal-precision frequency meter |
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