A Null Space-Based Blind Source Separation for Fetal Electrocardiogram Signals

A null space method for over-complete blind source separation

In blind source separation, there areM sources that produce sounds independently and continuously over time. These sounds are then recorded bym receivers. The sound recorded by each receiver at each time point is a linear superposition of the sounds produced by the M sources at the same time point. The problem of blind source separation is to recover the sounds of the sources from the sounds re...

Null space component analysis for noisy blind source separation

We propose an approach called the Null Space Component Analysis (NCA) algorithm to solve the noisy blind source separation (BSS) problem. In a set of m linearly independent source signals, each signal is associated with a separating operator that includes the signal in its null space and repels other signals from the space. The signal model induced by the m operators represents the space where ...

Fetal Electrocardiogram Extraction by Blind Subspace Separation

A New Method for Fetal Electrocardiogram Denoising Using Blind Source Separation and Empirical Mode Decomposition

1 “Politehnica” University of Bucharest, Applied Electronics and Information Engineering Department, E-mail: [email protected], rodica. [email protected]. 2 “Carol Davila” University of Medicine and Pharmacy, Obstretics and Gynecology Department, Bucharest, Romania, E-mail: ilinca. [email protected]. A NEW METHOD FOR FETAL ELECTROCARDIOGRAM DENOISING USING BLIND SOURCE SEPARATION AND EMPIRIC...

Research and Application of Fetal Electrocardiogram Blind Signal Separation Technology

FECG (Fetal Electrocardiogram) is weak signal indirect monitored between the electrode that placed upon the mother abdominal the matrix surface, which contains all the forms of jamming signal. How to separate the Fetal from the strong background interference has important value of clinical application, but this is a difficult problem in the signal processing field. Independent Component Analysi...