Example of a dataset where σ = 5 degrees. Only a short segment of the signals is shown, for clarity. Top row: original sources (left) and PLFs between them (right). Middle row: mixed signals (left) and PLFs between them (right). Bottom row: estimated sources, after manual compensation of permutation, scaling, and sign (left); PLFs between them (middle); and the gain matrix W
A(right). The gain matrix is virtually equal to the identity matrix, indicating a correct separation.