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 。
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.
出处
《汽轮机技术》
北大核心
2001年第2期87-92,117,共7页
Turbine Technology
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
汽轮发电机
wavelet decomposition
embedded coding of zerotrees of wavelet coefficients
data compress
vibration data
