In this paper, we represent numerical results which, validate our former work on the hydrodynamic effect (nonlinear) produced by breaking waves [1] in EM bistatic scattering coefficients. We calculated the scattering coefficient σHH of breaking waves in bi-static configurations as a function of time. Then, in this paper we represent the first experimental measurements, which have been carried out in X-band in our anechoic chamber (E³I²-EA3876- laboratory of Ensta bretagne); of the breaking waves profiles. In this work, we consider the sea surface as a perfect conductor rough surface..