Results 21 to 30 of about 20,266 (306)
International Journal of Bifurcation and Chaos, 2016 This paper introduces a class of polynomial maps in Euclidean spaces, investigates the conditions under which there exist Smale horseshoes and uniformly hyperbolic invariant sets, studies the chaotic dynamical behavior and strange attractors, and shows that some maps are chaotic in the sense of Li–Yorke or Devaney.
openaire +3 more sources
Empirically characteristic analysis of chaotic PID controlling particle swarm optimization. [PDF]
PLoS ONE, 2017 Since chaos systems generally have the intrinsic properties of sensitivity to initial conditions, topological mixing and density of periodic orbits, they may tactfully use the chaotic ergodic orbits to achieve the global optimum or their better ...
Danping Yan +4 more
doaj +1 more source
Compact Analog Chaotic Map Designs Using SOI Four-Gate Transistors
IEEE Access, 2023 This work introduces three novel chaotic map circuits. Two of the map circuits use two $p$ -channel and one $n$ -channel silicon-on-insulator (SOI) four-gate transistor (G 4FET) while the third design uses two $n$ -channel and one $p$ -channel G 4FET.
Maisha Sadia +2 more
doaj +1 more source
A novel image encryption scheme based on 3D bit matrix and chaotic map with Markov properties
Egyptian Informatics Journal, 2019 Based on 3D cat map, reverse 3D cat map and an improved class of chaotic maps with Markov properties, an effective bit-level image encryption scheme is proposed.
Meng Ge, Ruisong Ye
doaj +1 more source
A Novel Chaotic Map and an Improved Chaos-Based Image Encryption Scheme
The Scientific World Journal, 2014 In this paper, we present a novel approach to create the new chaotic map and propose an improved image encryption scheme based on it. Compared with traditional classic one-dimensional chaotic maps like Logistic Map and Tent Map, this newly created ...
Xianhan Zhang, Yang Cao
doaj +1 more source
Abrupt bifurcations in chaotic scattering : view from the anti-integrable limit [PDF]
, 2013 Bleher, Ott and Grebogi found numerically an interesting chaotic phenomenon in 1989 for the scattering of a particle in a plane from a potential field with several peaks of equal height.
Chen, Yi-Chiuan +2 more
core +1 more source
Entropy, 2022 With the advancement of technology worldwide, security is essential for online information and data. This research work proposes a novel image encryption method based on combined chaotic maps, Halton sequence, five-dimension (5D) Hyper-Chaotic System and
Sakshi Patel, Thanikaiselvan Veeramalai
doaj +1 more source
A new approach to the treatment of Separatrix Chaos and its applications [PDF]
, 2010 We consider time-periodically perturbed 1D Hamiltonian systems possessing one or more separatrices. If the perturbation is weak, then the separatrix chaos is most developed when the perturbation frequency lies in the logarithmically small or moderate ...
P. V. E. McClintock +10 more
core +1 more source
Speech encryption using chaotic shift keying for secured speech communication
EURASIP Journal on Audio, Speech, and Music Processing, 2017 This paper throws light on chaotic shift keying-based speech encryption and decryption method. In this method, the input speech signals are sampled and its values are segmented into four levels, namely L 0, L 1, L 2, and L 3. Each level of sampled values
P. Sathiyamurthi, S. Ramakrishnan
doaj +1 more source
A 2D Chaotic Oscillator for Analog IC
IEEE Open Journal of Circuits and Systems, 2022 In this paper, we have proposed the design of an analog two-dimensional (2D) discrete-time chaotic oscillator. 2D chaotic systems are studied because of their more complex chaotic behavior compared to one-dimensional (1D) chaotic systems.
Partha Sarathi Paul +3 more
doaj +1 more source