| 科氏流量计信号频率的变步长直接估计算法 |
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| 引用本文： | 李威,杨辉跃,涂亚庆.科氏流量计信号频率的变步长直接估计算法[J].后勤工程学院学报,2011,27(6):71-75,86. |
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| 作者姓名： | 李威 杨辉跃 涂亚庆 |
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| 作者单位： | 后勤工程学院后勤信息工程系,重庆,401311 |
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| 基金项目： | 国家自然科学基金资助项目(60871098); 重庆市自然科学基金资助项目(CSTC,2011BA2015) |
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| 摘 要： | 研究科氏流量计频率估计方法对提高其测量精度具有重要意义.分析了变步长直接频率估计( VS-DFE)方法的原理,归纳出一种基于VS-DFE的科氏流量计信号频率估计算法,给出了算法基本思想、流程和实现步骤.分别针对两种常见流量状态下科氏流量计的固定频率信号和时变信号进行仿真分析,并与离散频谱校正法进行了比较.仿真结果表明,...
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| 关 键 词： | 科氏流量计 频率估计 变步长直接频率估计 离散频谱校正 |
A Variable Step-size Direct Frequency Estimation Algorithm for Coriolis Mass Flowmeter |
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| LI Wei,YANG Hui-yue,TU Ya-qing.A Variable Step-size Direct Frequency Estimation Algorithm for Coriolis Mass Flowmeter[J].Journal of Logistical Engineering University,2011,27(6):71-75,86. |
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| Authors: | LI Wei YANG Hui-yue TU Ya-qing |
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| Institution: | LI Wei,YANG Hui-yue,TU Ya-qing(Dept.of Logistical Information Engineering,LEU,Chongqing 401311,China) |
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| Abstract: | The research of frequency estimation method of Coriolis mass flowmeter is of great significance for improving the accuracy of this flowmeter.The method of variable step-size direct frequency estimation(VS-DFE)is analyzed firstly.Then a frequency estimation algorithm for Coriolis mass flowmeter is concluded,meanwhile,the algorithm's basic notion and flow and the process of realization are also presented.The algorithm is applied to simulate fixed frequency signal and time-varying signal in two common flow con... |
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| Keywords: | Coriolis mass flowmeter frequency estimation variable step-size direct frequency estimator discrete spectrum correction |
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