In-process comes into question and is designed method of estimation of sound-level in additive his mixture with chaotic signals. His the dependence of coarse-grained cross-correlation entropy underlies on dispersion of noise and parameter of coverage of attractor of the looked after signal of inlaid in phase space. The results of design retimed that a method is capable of working for the wide class of chaotic signals and noise at considerable his level. The algorithm of estimation of sound-level can be easily realized by modern facilities of the digital data processing and used for construction of optimum devices of the chaotic and other regular signal looked after on a background noise with unknown intensity processing.
estimation of noise-level, cross-correlation entropy