Abstract—This work deals with the problem of source separation
in the case when the observations result from MIMO
instantaneous mixing system. In a blind framework, high order
contrast functions constitue an efficient tool for extracting
sources. However, all of them are limited to the case of at most one
source is gaussian. In this paper, a reformulation of Referenced
Contrast (RC) is presented. This novel method applies to separate
all sources having any distributions. Our proposition allows to
assess the capabilities of RC to break the obviousness that High-
Order Statistics based methods are restricted to the mixtures
allowing at most one Gaussian source. Our design constrains the
reference signals choice to avoid the cancelation of the crosscumulant
involved in the proposed contrast. Simulation studies
are presented to support the potential of the approach in terms
of source separation.