| Citation: | Xiaofeng GONG, Lei MAO, Qiuhua LIN, Yougen XU, Zhiwen LIU. Joint Blind Source Separation Based on Joint Diagonalization of Fourth-order Cumulant Tensors[J]. Journal of Electronics & Information Technology, 2019, 41(3): 509-515. doi: 10.11999/JEIT180414
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A new Joint Blind Source Separation (J-BSS) algorithm is proposed based on joint diagonalization of fourth-order cumulant tensors. This algorithm constructs first a set of fourth-order tensors by computing the fourth-order cross cumulant of the multiset signals. Then, based on the Jacobian successive rotation strategy, the highly nonlinear optimization problem of joint tensor diagonalization is transformed into a series of simple sub-optimization problems, each admitting a closed form solution. The multiset mixing matrices are hence updated via alternating iterations, which diagonalize jointly the data tensors. Simulation results show that the proposed algorithm has nice convergence pattern and higher accuracy than existing BSS and J-BSS algorithms of a similar type. In addition, the algorithm works well in a real-world application to fetal ECG separation.
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