Comments on blind beamforming for multiple non-Gaussian signals and the constant-modulus algorithm

For original paper see Sheinvald (IEEE Trans. Signal Processing, vol.46, p.1878-85 July 1998). Sheinvald compared a cumulant matching criterion to three simplified criteria that he claimed to be equivalent. We show that two simplified criteria can be viewed as direct consequences of a result already published and that their equivalence must be revised. We also give additional references of closely related works that have been omitted, some of them presenting Jacobi-like source separation algorithms, presented as original by Sheinvald.

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