| Burg算法与自相关在科氏流量计中的应用 |
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| 引用本文： | 任建新,裴岩,张鹏,暴苗刚.Burg算法与自相关在科氏流量计中的应用[J].机械与电子,2012(6):70-73. |
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| 作者姓名： | 任建新 裴岩 张鹏 暴苗刚 |
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| 作者单位： | 1. 西北工业大学自动化学院,陕西西安,710129
2. 西安东风机电有限公司,陕西西安,710068 |
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| 摘 要： | 为提高谱分辨率，将Burg算法引入科氏流量计频率解算，无需对窗口之外数据假设。Burg算法谱分辨率受信号初相以及信号噪声影响，对Burg算法进行分析和改进，并引入自相关算法，解决初相以及噪声的影响。建立了科氏流量计的信号模型，用Matlab对本算法进行仿真验证，算法的解算精度优于一般流量计的要求，算法可以用于科氏流量计频率解算。
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| 关 键 词： | 科氏流量计 自相关 Burg算法 功率 谱估计 |
Application of Burg Algorithm and Self-correlation in Coriolis Mass Flowmeter |
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| REN Jian-xin
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PEI Yan
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ZHANG Peng
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BAO Miao-gang.Application of Burg Algorithm and Self-correlation in Coriolis Mass Flowmeter[J].Machinery & Electronics,2012(6):70-73. |
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| Authors: | REN Jian-xin PEI Yan ZHANG Peng BAO Miao-gang |
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| Affiliation: | 1 (1.School of Automation,Northwestern Polytechnical University,Xi’an 710129,China;2.Xi’an Dongfeng Electrical Co.,Ltd.,Xi’an 710068,China) |
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| Abstract: | To better the resolution,this paper introduces the Burg spectrum estimate method into the frequency calculating of CMF without assuming the data out of data window.Resolution of Burg algorithm is affected by primary phase and noise.This paper improves Burg algorithm and introduces self-correlation to restrain the effect of primary phase and noise.The paper established the signal model of CMF,and carried out Matlab simulation.Simulation result showed that the precision of this algorithm is better than common requirement of CMF,and is not effected by sample frequency.This algorithm can be used in frequency calculating of CMF. |
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| Keywords: | Coriolis mass flowmeter self-correlation Burg algorithm power spectral estimation |
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