Figure 23

The BSS concept; the unobservable sources s ₁ [i], …, s _n [i] are mixed and corrupted by additive zero mean noise to generate the observations x ₁ [i], …, x _m [i] . The target of BSS is to estimate an unmixing system to recover the original sources in $y_1\left[i\right],\dots ,y_n\left[i\right]$.