Št. zadetkov: 11
Izvirni znanstveni članek
Oznake:
chaos;sine map;eqapproximation;Taylor expansion;chaotification;pseudo-random bit generator;nonlinear system;
In this work, we consider polynomial approximations of the sine map, which is known to be chaotic. The dynamics of the maps obtained for different orders of approximations are studied using classical tools. Comparison of the behavior is made through common bifurcation diagrams, 0–1 test results, Lya ...
Leto:
2023
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
control;HIV;modeling;human immunodeficiency virus;AIDS;nonlinear system;biological modeling;biological system;
A dynamical model that describes the interaction of the HIV virus and the immune system is presented. The effect of introducing antiretroviral therapy on the model, consisting of RTI and PI drugs is investigated, along with the result of undesired treatment interruption. Furthermore, the effect of b ...
Leto:
2016
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Samostojni znanstveni sestavek ali poglavje v monografski publikaciji
Oznake:
nonlinear system;control;HIV;AIDS;human immunodeficiency virus;modeling;
A dynamical model that describes the interaction between the HIV virus and the human immune system is presented. This model is used to investigate the effect of antiretroviral therapy, consisting of RTI and PI drugs, along with the result of undesired treatment interruption. Furthermore, the effect ...
Leto:
2018
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Objavljeni znanstveni prispevek na konferenci
Oznake:
chaos;nonlinear system;path planning;UAV;area exploration;area coverage;surveillance;
This research focuses on the problem of area surveillance, using a UAV with a mounted camera that is controlled chaotically. The chaotic motion of the camera is performed by using the values of a chaotic map, to generate random rotation angles for the camera head, which periodically captures photos ...
Leto:
2021
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
chaos;chaotification;Lyapunov exponent;B-spline;encryption;pseudo-random bit generator;nonlinear system;
In this work, a chaotification technique is proposed for increasing the complexity of chaotic maps. The technique consists of adding the remainder of multiple scalings of the map’s value for the next iteration, so that the most- and least-significant digits are combined. By appropriate parameter tun ...
Leto:
2023
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
chaos;Renyi;modulo;chaotification;discrete map;pseudo-random bit generator;nonlinear system;
In this work, a chaotification technique is proposed that can be used to enhance the complexity of any one-dimensional map by adding the remainder operator to it. It is shown that by an appropriate parameter choice, the resulting map can achieve a higher Lyapunov exponent compared to its seed map, a ...
Leto:
2022
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Samostojni znanstveni sestavek ali poglavje v monografski publikaciji
Oznake:
chaos;nonlinear system;encryption;cryptography;image encryption;pseudo-random bit generator;
This work studies the problem of chaos-based image encryption. First, a generalization of the 1D chaotic map proposed by (Talhaoui et al. in The Visual
Computer, pp 1–11, 2020) [8] is constructed and studied. The generalized map showcases regions of constant chaotic behaviour, similar to the origin ...
Leto:
2022
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Objavljeni znanstveni prispevek na konferenci
Oznake:
chaos;nonlinear system;encryption;cryptography;image encryption;pseudo-random bit generator;PRBG;
In this paper, a two-parameter one-dimensional chaotic map with hyperbolic tangent and two nested sinusoidal terms is proposed. The reported map exhibits rich chaotic behavior including such phenomena as the period-doubling route to chaos, crisis, and antimonotonicity appearing. The proposed map is ...
Leto:
2021
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Objavljeni znanstveni prispevek na konferenci
Oznake:
chaos;nonlinear system;encryption;cryptography;pseudo-random bit generator;image encryption;automata;
This work introduces an encryption scheme for gray-scale plain-text images, which is based on a chaotic map. Initially, the proposed chaotic map, which is a modification of the Renyi map, is introduced and is utilized in defining a Pseudo-Random Bit Generator. Subsequently, a finite automaton is int ...
Leto:
2022
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
chaos;one-dimensional map;pseudo-random bit generator;encryption;password generator;nonlinear system;
This paper proposes a new one-dimensional chaotic map. The map consists of a coupling between two hyperbolic tangent terms, where the second term is delayed, to avoid dynamical degradation. The map is studied through computation of its bifurcation diagrams and Lyapunov exponent diagrams and is shown ...
Leto:
2023
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)