Results 1 to 10 of about 18,051 (213)

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

open access: yesEntropy, 2019
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.
Chuanfu Wang, Qun Ding
doaj   +2 more sources

An investigation of the effects of chaotic maps on the performance of metaheuristics

open access: yesEngineering Reports, 2021
This article presents an empirical investigation of the effects of chaotic maps on the performance of metaheuristics. Particle Swarm Optimization and Simulated Annealing are modified to use chaotic maps instead of the traditional pseudorandom number ...
Iannick Gagnon, Alain April, Alain Abran
doaj   +2 more sources

An Improved Absolute-Cosine Chaotification Model and Its Simple Application in PRNG

open access: yesIEEE Access, 2023
Chaotic systems are widely used in various aspects such as information security, signal processing, and synchronous control. The structural complexity and the chaotic behavior of chaotic systems are two significant factors affecting their practical ...
Feng Zhang   +4 more
doaj   +1 more source

Discrete Superior Hyperbolicity in Chaotic Maps

open access: yesChaos Theory and Applications, 2021
In the last few decades, the dynamics of one-dimensional chaotic maps have gained the tremendous attention of scientists and scholars due to their remarkable properties such as period-doubling, chaotic evolution, Lyapunov exponent, etc.
Fawaz Alsaadi   +3 more
doaj   +1 more source

Second-Order Chaotic Maps With Random Coefficients to Generate Complex Chaotic Sequences for High-Security Image Encryption

open access: yesIEEE Access, 2023
Chaotic maps have been widely applied on image encryption for their complexity and sensitivity to key variation. In this work, we propose second-order chaotic maps with optimized random coefficients to generate chaotic sequences for image encryption. Two
Ta-Chien Yeh, Jean-Fu Kiang
doaj   +1 more source

Lyapunov Exponent Enhancement in Chaotic Maps with Uniform Distribution Modulo One Transformation

open access: yesChaos Theory and Applications, 2022
Most of the chaotic maps are not suitable for chaos-based cryptosystems due to their narrow chaotic parameter range and lacking of strong unpredictability.
Günyaz Ablay
doaj   +1 more source

Multidimensional Discrete Chaotic Maps

open access: yesFrontiers in Physics, 2022
In this paper, the general concept of multidimensional discrete maps is presented. Moreover, new and fundamental results show the invariance of the bifurcation points from periodic to chaotic behavior.
Maide Bucolo   +6 more
doaj   +1 more source

Technique for Enhancing the Chaotic Characteristics of Chaotic Maps Using Delayed Coupling and Its Application in Image Encryption

open access: yesMathematics, 2023
Chaotic systems are widely used in many scientific fields for their dynamic characteristics. This study proposes a new delayed coupling method, which not only disturbs the control coefficient in chaotic maps but also affects their function structure ...
Shuiyuan Huang   +3 more
doaj   +1 more source

Image Encryption Using a New Hybrid Chaotic Map and Spiral Transformation

open access: yesEntropy, 2023
Image encryption based on chaotic maps is an important method for ensuring the secure communication of digital multimedia on the Internet. To improve the encryption performance and security of image encryption systems, a new image encryption algorithm is
Mingfang Jiang, Hengfu Yang
doaj   +1 more source

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