Combined estimation scheme for blind source separationwitharbitrary source pdfs
Vicente Zarzoso, Asoke Kumar Nandi, F. Herrmann, José Millet · Electronics Letters · 2001
An alternative closed-form estimator for blind source separation based on fourth-order statistics is presented. In contrast to other estimators, the new estimator works well when the source kurtosis sum is zero. Arbitrary source pdfs are successfully treated through a combined estimation scheme based on a heuristic decision rule for choosing between the new estimator and an existing estimator.