A new approach to estimate noise distribution under chaotic background

This paper addresses the problem of filtering noise out from a chaotic signal. To pursue this aim, we prefer to estimate noise distribution under chaotic background first. Since chaotic signal has internal random property, it's hard to filter the noise out with a normal method. On the basis of the extensive analysis of the local correlation of the chaotic dynamic system, a method for analyzing a signal's deterministic degree is given. A parameter D being very sensitive to the noise is introduced and used to show how deterministic the system is. A new approach for estimation of noise distribution in chaotic distribution system is obtained.