| 基于震动信号HHT的车辆分类 |
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| 引用本文： | 林振华,李宝清,魏建明,刘海涛.基于震动信号HHT的车辆分类[J].计算机仿真,2010,27(3):281-285. |
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| 作者姓名： | 林振华 李宝清 魏建明 刘海涛 |
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| 作者单位： | 中科院上海微系统与信息技术研究所,中国科学院无线传感网与通信重点实验室,上海,200050 |
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| 基金项目： | 上海市科委科技攻关项目(07dz15011);;国家863计划项目(2006aa01z216) |
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| 摘 要： | 震动传感器是智能监控传感器系统的重要组成部分。震动信号是一种非线性非平稳信号。相比于传统的时频分析方法,对希尔伯特-黄变换是一种更有效地处理非平稳信号的时频分析方法。将希尔伯特-黄变换引入到车辆分类中,提取震动信号特征信息,利用经验模态分解(EMD)获得车辆行驶引起的地面震动信号的固有模态函数(IMF),通过选取的固有模态函数得到相应的希尔伯特谱,然后在希尔伯特谱的基础上根据谱峰对车辆进行分类。仿真测试结果表明方法具有很高的正确率。
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| 关 键 词： | 震动信号 希尔伯特-黄变换 希尔伯特谱 车辆分类 |
Hilbert-Huang Transform Based on Vibrating Signal for Vehicle Classification |
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| LIN Zhen-hua,LI Bao-qing,WEI Jian-ming,LIU Hai-tao.Hilbert-Huang Transform Based on Vibrating Signal for Vehicle Classification[J].Computer Simulation,2010,27(3):281-285. |
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| Authors: | LIN Zhen-hua LI Bao-qing WEI Jian-ming LIU Hai-tao |
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| Affiliation: | Key Laboratory of wireless sensor network & communication/a>;Shanghai institute of microsystem and information technology/a>;CAS/a>;Shanghai 200050/a>;China |
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| Abstract: | Vibrating sensor is an important component of intelligent monitoring system based on sensors.Vibrating signal is nonlinear and nonstationary.Hilbert-Huang transform is designed to work well for data that are nonstationary and nonlinear,and gives results much sharper than any of the traditional analysis methods in time-frequency-amplitude representation.Hilbert-Huang is adopted to vehicle classification.Using the empirical mode decomposition(EMD),the vibrating signal of vehicle moving is decomposed into a fi... |
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| Keywords: | Vibrating signal Hilbert-Huang transform(HHT) Hilbert spectrum Vehicle classification |
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