Blind extraction of ECG signals based on similarity in the phase space

Blind extraction of ECG signals based on similarity in the phase space
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基于相空间相似性的心电信号盲提取

DOI:
10.1016/j.chaos.2021.110950
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发表时间:
2021-06
影响因子:
7.8
通讯作者:
Wang Shiyuan
Wang Shiyuan
中科院分区:
数学1区
文献类型:
--
作者:
Li Yin;Li Fagang;Lyu Shanxiang;Xu Meng;Wang Shiyuan

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心电信号作为包含心脏活动重要信息的生物信号,具有混沌特性。由于一个干净的心电图信号是至关重要的心脏疾病的诊断和分析,我们解决的任务,提取心电图的一组嘈杂的意见。基于心电图的相空间相似性,我们提出了一个称为相似性指数的目标,充分描述这种相似性。提出了一种低复杂度的相似性指数算法。仿真结果证实了所提出的方法的有效性与传统的基准进行比较。
Electrocardiogram (ECG), as a biological signal that contains important information about the cardiac activities of heart, exhibits chaotic characteristics. Since a clean ECG signal is of vital importance in the diagnosis and analysis of heart diseases, we address the task of extracting ECG for a set of noisy observations. Based on the phase space similarity of ECG, we propose an objective called similarity index which fully describes this similarity. A low-complexity algorithm is presented for the similarity index. Simulation results confirm the effectiveness of the proposed method by making comparisons with conventional benchmarks.
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