Study on Blind Source Separation of Single-Channel Signal with EEMD
نویسندگان
چکیده
A new blind source separation method is proposed to solve the single-channel mechanical signal separation. The new approach consists of ensemble ensemble empirical mode decomposition (EEMD) and blind source separation. Firstly the single-channel signal was decomposed into a set of proper intrinsic mode functions(IMF) by EEMD. A multi-dimensional signal was obtained by the combination of the denoised single-channel signal and its IMFs. Then mechanical sources number was estimated by a singular value decomposition and a Bayesian criterion. The multi-dimensional mixed signal was recombined according to estimated sources number and mechanical source was estimated. Simulation results indicate that the single-channel source signals are separated correctly by the proposed method.
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