心电图干扰事件同步消除的新方面：该方法在膈肌肌电信号中的应用。

New aspects to event-synchronous cancellation of ECG interference: an application of the method in diaphragmatic EMG signals.

作者信息

Deng Y, Wolf W, Schnell R, Appel U

机构信息

Institut für Mathematik und Datenverarbeitung, Universität Bundeswehr München-ET 1, Neubiberg, Germany.

出版信息

IEEE Trans Biomed Eng. 2000 Sep;47(9):1177-84. doi: 10.1109/10.867924.

DOI:10.1109/10.867924

PMID:11008418

Abstract

An "event-synchronous interference canceller" (ESC) for cancellation of electrocardiographic (ECG) interference in diaphragmatic electromyographic (EMGdi) signals is addressed in this paper. ESC pursues the concept of the "event synchronous adaptive interference canceller" (ESAIC), which was proposed in [1] as a specific application of the well known "adaptive noise canceller" (ANC) paradigm, but ESC uses a simple adaptive gain control (AGC) instead of the complex adaptive filter of the ANC. The proposed ESC method is evaluated using both computer simulations and real EMGdi data, and its efficiency in interference cancellation is compared to that of ESAIC. Of particular interest is the result that the ESC can replace the ESAIC providing better performance as well as a considerable reduction of computational costs.

摘要

本文介绍了一种用于消除膈肌肌电图（EMGdi）信号中心电图（ECG）干扰的“事件同步干扰消除器”（ESC）。ESC采用了“事件同步自适应干扰消除器”（ESAIC）的概念，[1]中提出该概念作为著名的“自适应噪声消除器”（ANC）范式的一种具体应用，但ESC使用简单的自适应增益控制（AGC）代替了ANC的复杂自适应滤波器。使用计算机模拟和实际EMGdi数据对所提出的ESC方法进行了评估，并将其干扰消除效率与ESAIC的效率进行了比较。特别值得关注的结果是，ESC可以替代ESAIC，不仅性能更好，而且计算成本大幅降低。