| 基于Hilbert-Huang变换的室内地磁信号处理分析 |
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| 引用本文： | 惠延波,刘任波,王莉,牛群峰.基于Hilbert-Huang变换的室内地磁信号处理分析[J].科学技术与工程,2019,19(25):250-255. |
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| 作者姓名： | 惠延波 刘任波 王莉 牛群峰 |
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| 作者单位： | 河南工业大学电气工程学院,郑州,450001;河南工业大学电气工程学院,郑州,450001;河南工业大学电气工程学院,郑州,450001;河南工业大学电气工程学院,郑州,450001 |
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| 基金项目： | 河南省科技攻关项目(182102210089)、河南省粮食光电探测与控制重点实验室开放课题(KFJJ-2016-201)和河南工业大学“省属高校基本科研业务费专项资金”项目(2018XTCX02)资助 |
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| 摘 要： | 提出一种利用Hilbert-Huang变换(HHT)处理分析室内地磁信号的方法。介绍HHT原理与方法,设计出一种室内地磁信号采集平台,对实际测量的室内地磁信号进行经验模态分解(EMD),并对分解后的固有模态函数(IMF)进行频谱和时频剖析,最后将经过HHT处理的原始信号进行重组。结果表明,HHT能用于描述复杂的室内地磁信号的非线性时变特征,为室内地磁信号的处理分析提供一种可行的方法。
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| 关 键 词： | Hilbert-Huang 变换 室内地磁信号 室内地磁采集平台 非线性时频 |
| 收稿时间： | 2018/9/13 0:00:00 |
| 修稿时间： | 2019/5/31 0:00:00 |
Indoor Geomagnetic Signal Processing and AnalysisBased on Hilbert-Huang Transform |
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| huiyanbo,wangli,and.Indoor Geomagnetic Signal Processing and AnalysisBased on Hilbert-Huang Transform[J].Science Technology and Engineering,2019,19(25):250-255. |
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| Authors: | huiyanbo wangli and |
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| Institution: | Henan University of Technology,,,, |
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| Abstract: | This paper proposes a method for processing and analyzing indoor geomagnetic signals using Hilbert-Huang transform (HHT). Firstly, introduce the principle and method of HHT, and design an indoor geomagnetic signal acquisition platform. Then the empirical mode decomposition (EMD) is performed on the measured indoor geomagnetic signal, and the spectrum and time-frequency analysis of the decomposed intrinsic mode function (IMF) are performed. Finally, the original signal subjected to HHT processing is recombined. The results show that HHT can be used to describe the nonlinear time-varying characteristics of indoor geomagnetic signals, and provide a feasible method for the processing and analysis of indoor geomagnetic signals. |
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| Keywords: | Hilbert-Huang transform indoor geomagnetic signal indoor geomagnetic acquisition platform nonlinear time-varying |
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