An effect of noise on the amplitude of non-linear waves in metals

The method for description of the outside noise influence on the non-linear wove amplitudes in metals is proposed. It is shown shot the noisy effect, changing the medium parameters, leads to the probability density distribution (that ir the non-Gaussian) of non-linear waves in amplitude. With increasing noire intensity such a distribution in amplitude if broadened. The experimental regimes of behaviour of non-linear waver during plastic deformation of metals ore qualitatively described by obtained results. These results are perspective for using in the design of experiments and interpretation of metal-physics experimental data.