... sensor signals and (c) reconstructed source signals. 2977.9 Blind separation of speech signals using the algorithm (7.80):(a) Primary source signals, (b) sensor signals, (c) recoveredsource signals. ... 2987.10 (a) Eight ECG signals are separated into: Four maternalsignals, two fetal signals and two noise signals. (b) Detailedplots of extracted fetal ECG signals. The mixed signalswere obtained ... ofnatural speech signals and a colored Gaussian noise, wheresjand x1j, stand for the j-th source signal and mixed signal, respectively. The signals yjwas extracted by using the neuralnetwork...