Quaternion ICA From Second-Order Statistics

@article{Va2011QuaternionIF,
  title={Quaternion ICA From Second-Order Statistics},
  author={Javier V{\'i}a and Daniel P{\'e}rez Palomar and Luis Vielva and Ignacio Santamar{\'i}a},
  journal={IEEE Transactions on Signal Processing},
  year={2011},
  volume={59},
  pages={1586-1600}
}
This paper addresses the independent component analysis (ICA) of quaternion random vectors. In particular, we focus on the Gaussian case and therefore only consider the quaternion second-order statistics (SOS), which are given by the covariance matrix and three complementary covariance matrices. First, we derive the necessary and sufficient conditions for… CONTINUE READING

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