A nonlinear state-space projection technique successfully suppresses maternal and noise contaminations in single-lead fetal ECG recordings with comparable fetal and noise amplitudes.
Nonlinear state-space projections can effectively extract fetal ECG signals from noisy single-lead recordings.
We describe a method to suppress maternal and noise contaminations in single-lead fetal ECG recordings. A nonlinear state space projection technique originally developed for noise reduction in deterministically chaotic signals is used. The method is successfully applied to recordings with fetal components and noise of comparable amplitude.
Richter et al. (1998) studied this question. A nonlinear state-space projection technique successfully suppresses maternal and noise contaminations in single-lead fetal ECG recordings with comparable fetal and noise amplitudes.