中文

基于小波字典的 ECG 信号分段降维方法

信号处理 2019-06-12 v2

摘要

在稀疏表示框架下研究 ECG 信号的降维。该方法通过贪心策略从冗余字典中选取基本分量来构建信号模型。所提出的小波字典由多分辨率方案构建,但将原型的平移步长设为短于小波基对应的步长。结果表明信号的简化表示适用于低失真水平的压缩。就此而言,在 MIT-BIH 心律失常数据集上的压缩结果优于先前报道的基准。

关键词

引用

@article{arxiv.1811.05517,
  title  = {Wavelet Based Dictionaries for Piecewise Dimensionality Reduction of ECG Signals},
  author = {Laura Rebollo-Neira and Dana Cerna},
  journal= {arXiv preprint arXiv:1811.05517},
  year   = {2019}
}

备注

Software for constructing the dictionaries, as well as for reproducing results, has been made available on http://www.nonlinear-approx.info/examples/node011.html