基于小波包最优基的心电图压缩  

ECG Signal Compression Based on Best Basis of Wavelet Packets

作　　者：王淑艳[1] 李昌青[2] 

机构地区：[1]中国民用航空学院电子系,天津300300 [2]天津大学设备处,天津300072

出　　处：《生物医学工程学杂志》2002年第2期256-258,共3页Journal of Biomedical Engineering

摘　　要：给出一种新的心电图压缩方法 ,该方法是在小波库中通过以信息熵作为代价函数寻找最优基 ,实现心电图压缩。仿真结果显示 ,该方法压缩比大 ,信息损失小 ,能够较好的恢复原有的信号。The paper reports a kind of new compression method of ECG signal. The method is realized by means of wavelet packets transform based on best basis performed by Shanon Weaker entropy criterion. The result of simulation shows that this is an efficient compression method characterized by larger compression ratio and less loss, and the original signal can be recovered well.

关 键 词：心电图 数据压缩 小波包 最优基 

分 类 号：R311[医药卫生—基础医学]