A New Technique of the Single TEOAES Mix Signal Separation Based on Independent Sub-band Functions

The paper presents a new technique to eliminate the stimulus artifact when given only single mix signal by a sensor observed. One signal source can be generated by a set of weighted linear superposition of the time domain sub-band functions with independent component characteristic. By combining the independent sub-band function components into the single mixture signal, making the single mixture signal is transformed into a multi-dimensional vector from one-dimensional. Thus ICA can be applied to separate the extended single-channel mixture signal. It is researched too that principles of makeup of the independent sub-band function. The separation results of TEOAEs (Transient Evoked Otoacoustic Emissions) mix signal demonstrated the effectiveness and adaptability of the proposed method.