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English Abstract
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Zang Hong-Yan,Chai Hong-Yu
1.Mathematics and Physics School, University of Science and Technology Beijing, Beijing 100083, China
Fund Project:Project supported by the National Natural Science Foundation of China (Grant Nos. 61170037)Received Date:15 August 2015
Accepted Date:13 November 2015
Published Online:05 February 2016
Abstract:In this paper, firstly we construct a quadratic chaotic system and prove that it is a topological conjugate system of Tent map. Secondly, having analyzed the probability density function of the system, we propose an anti-trigonometric function map. Additionally, the performances of the quadratic chaotic system such as information entropy, Kolmogorov entropy and discrete entropy are tested for both the original systems and the homogenized systems with different parameters. Numerical simulations show that the information entropy of the uniformly distributed sequence is close to the theoretical limit and the discrete entropy remains unchanged. This result shows that the homogenization method is effective. In conclusion, the chaotic sequence after homogenization not only inherits the diverse properties of the original sequence, but also exhibits better uniformity.
Keywords: Chaos system
