复极化分析的时空线性展开

S. Olmos, J.P. Martinez, L. Sornmo
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引用次数: 6

摘要

我们提出了一种基于线性扩展的多通道信号模型来分析心脏复极。我们的假设是,同时考虑时间和空间特征的联合时空信号描述提供了更紧凑的信号表示,即信号能量被打包成更少的系数。我们还处理了在两种不同情况下估计最优基函数的问题:当没有噪声源信息可用时,以及当噪声统计量已知或从特定信号或间隔(如TP段)估计时。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Spatio-temporal linear expansions for repolarization analysis
We propose a multichannel signal model based on linear expansions to analyze cardiac repolarization. Our hypothesis is that a joint spatiotemporal signal description which takes into account both temporal and spatial features provides a more compact signal representation, i.e. the signal energy is packed into a smaller number of coefficients. We also deal with the problem of estimating optimal basis functions in two different situations: when no information of the noise source is available and when the noise statistics is known or estimated from specific signals or intervals, like the TP segment.
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