|
您當(dāng)前的位置：電子期刊欄目→論著>>正文 |
|
______________________FastICA在心電信號(hào)降噪中的應(yīng)用__________________ Application of ECG denoising based on FastICA |
| 作者： 姚文坡 林燕 孫濤 王娣 周昂 劉鐵兵 |
| 單位： 南京軍區(qū)南京總醫(yī)院醫(yī)學(xué)工程科(南京210002) |
| 關(guān)鍵詞： 快速獨(dú)立分量分析；峭度；負(fù)熵；心電信號(hào)；消噪 |
| 分類號(hào)： R318.04;TP391 |
| 出版年·卷·期（頁碼）：2016·35·2（151-155） |
| 摘要： |
|
目的 研究基于峭度和負(fù)熵的FastICA的模型特點(diǎn)，分析兩種算法在心電信號(hào)去噪中的應(yīng)用，對(duì)ICA在信噪分離中的特點(diǎn)加以分析研究。方法 首先利用心電數(shù)據(jù)庫MIH-BIT中單獨(dú)的心電信號(hào)和噪聲混合對(duì)FastICA進(jìn)行降噪測試，通過降噪后心電信號(hào)和原信號(hào)對(duì)比測試基于峭度和負(fù)熵的FastICA的降噪效果，然后對(duì)DaISy數(shù)據(jù)庫中的真實(shí)含噪心電信號(hào)進(jìn)行降噪，分析其在真實(shí)環(huán)境中的降噪效果。結(jié)果 通過多組合成混合含噪心電信號(hào)和真實(shí)含噪心電信號(hào)對(duì)兩種FastICA進(jìn)行分離測試，發(fā)現(xiàn)兩種FastICA都可成功地分離心電信號(hào)和噪聲，其中基于峭度的FastICA的降噪速度較快，而基于負(fù)熵的FastICA的精確度較高。結(jié)論 基于峭度和負(fù)熵的FastICA可以應(yīng)用于心電信號(hào)的降噪中，并且能夠有效降低信號(hào)噪聲。 |
|
Objective To analyze the characteristics of FastICA based on negentropy and kurtosis, and the application of ECG denoising based on the two kinds of FastICA in order to study the characteristics of ICA in separation of ECG and noise. Methods Synthetic and real ECG contaminated by noise are applied to test the two FastICA. Synthetic ECG consists of random noise and single ECG from MIH-BIT to test algorithms’speed and accuracy. Real ECG is from DaISy database to analyze the two ICA methods’effects in the real environment. Results Through synthetic and real ECG tests, the two kinds of FastICA are proved to be effective in ECG denoising. And results show that FastICA based on kurtosis has higher speed and FastICA based on negentropy has higher accuracy. Conclusions The two kinds of FastICA can be effectively applied in ECG denoising with good characteristics. |
| 參考文獻(xiàn)： |
|
|
| 服務(wù)與反饋： |
| 【文章下載】【加入收藏】 |
| 提示：您還未登錄，請(qǐng)登錄！點(diǎn)此登錄 |
|
|||||||||||||||||
|
|||||||||||||||||
|
|
地址：北京安定門外安貞醫(yī)院內(nèi)北京生物醫(yī)學(xué)工程編輯部 電話：010-64456508 傳真：010-64456661 電子郵箱：[email protected] |