The problem of separation of instantaneous rnixtures of narrowband signals impinging 011 sensors often arises in signal processing. In geophysics, the aims of signal processing are the separation and the identification of waves or sources to get a better understanding of the onshore. Since a couple of years, multicomponent sew sors are used in acquisition and allow to access to a physical property : the polarization. Aim of this paper is t o show that, taking the advantages from the multicomponent sensors, it is possible to have complete wavefield separation without a priori information. We propose to perform the estimation of wave's polarization using an algorithm derived from the Jointly Approximated Diagonalization of Eigen-elements (JADE) technique, which is based on the propcrties of the .Itch order cuinulants. From a real seismic acquisition, we present results where Rayleigh wave ~cparat~ion is performed. We also present the analysis of physical properties of t,he surface waves.