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Open AccessArticle

A Class of Quadratic Polynomial Chaotic Maps and Their Fixed Points Analysis

Electronic Engineering College, Heilongjiang University, Harbin 150080, China
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Author to whom correspondence should be addressed.
Entropy 2019, 21(7), 658; https://doi.org/10.3390/e21070658
Received: 7 June 2019 / Revised: 28 June 2019 / Accepted: 2 July 2019 / Published: 4 July 2019
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Abstract

When chaotic systems are used in different practical applications, such as chaotic secure communication and chaotic pseudorandom sequence generators, a large number of chaotic systems are strongly required. However, for a lack of a systematic construction theory, the construction of chaotic systems mainly depends on the exhaustive search of systematic parameters or initial values, especially for a class of dynamical systems with hidden chaotic attractors. In this paper, a class of quadratic polynomial chaotic maps is studied, and a general method for constructing quadratic polynomial chaotic maps is proposed. The proposed polynomial chaotic maps satisfy the Li–Yorke definition of chaos. This method can accurately control the amplitude of chaotic time series. Through the existence and stability analysis of fixed points, we proved that such class quadratic polynomial maps cannot have hidden chaotic attractors. View Full-Text
Keywords: hidden attractors; polynomial chaotic maps; amplitude control; approximate entropy hidden attractors; polynomial chaotic maps; amplitude control; approximate entropy
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Wang, C.; Ding, Q. A Class of Quadratic Polynomial Chaotic Maps and Their Fixed Points Analysis. Entropy 2019, 21, 658.

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