Blind source separation without optimization criteria?

@inproceedings{Zarzoso1999BlindSS,
  title={Blind source separation without optimization criteria?},
  author={Vicente Zarzoso and Asoke K. Nandi},
  booktitle={ICASSP},
  year={1999}
}
Blind source separation aims to extract a set of independent signals from a set of observed linear mixtures. After whitening the sensor output, the separation is achieved by estimating an orthogonal transformation, which in the real-mixture two-source two-sensor case is entirely characterized by a single rotation angle. This contribution studies an estimator of such an angle. Even though it is derived from geometric notions based on the scatter-plots of the signals involved, it is found… CONTINUE READING
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