| 小波分解及嵌入式小波系数零树编码在振动数据压缩中的应用研究 |
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| 引用本文： | 马元奎,陆颂元. 小波分解及嵌入式小波系数零树编码在振动数据压缩中的应用研究[J]. 汽轮机技术, 2001, 43(2): 87-92 |
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| 作者姓名： | 马元奎 陆颂元 |
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| 作者单位： | 东南大学振动控制与信息系统研究所, |
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| 摘 要： | 汽轮发电机组在线状态监测和故障诊断系统中振动数据实时存储和远程传输对数据压缩提出了较高的要求。详细阐述了基于一维信号的小波分解及嵌入式小波系数零树编码用于振动数据压缩的原理及方法 ,给出了据此方法编制的压缩软件应用于 3种常见振动信号数据压缩的实例 ,并对信号压缩重构的结果及该方法的实际应用进行了详细的分析讨论
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| 关 键 词： | 小波分解 嵌入式小波系数零树编码 数据压缩 振动数据 |
| 文章编号： | 1001-5884(2001)02-0087-06 |
| 修稿时间： | 2000-12-13 |
Research on Vibration Data Compress Using Wavelet Decomposition and Embedded Coding of Zerotrees of Wavelet Coefficients |
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| MA Yuan-kui,LU Song-yuan. Research on Vibration Data Compress Using Wavelet Decomposition and Embedded Coding of Zerotrees of Wavelet Coefficients[J]. Turbine Technology, 2001, 43(2): 87-92 |
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| Authors: | MA Yuan-kui LU Song-yuan |
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| Abstract: | In the turbo-generator condition monitoring and fault diagnosis system, the vibration data realtime restoring and teletransmission put forward a higher request to data compress. This essay discuss in details the basic principle and method of data compress using one dimension signal wavelet decomposition and embedded coding of zerotree of wavelet coefficients and give three real vibration data compress examples using a data compress software which is programmed based on this compress principle and give a detail discussion and analysis to the compress reconstruction results and this compress method's practical applications. |
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| Keywords: | wavelet decomposition embedded coding of zerotrees of wavelet coefficients data compress vibration data |
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