Randomness improvement of chaotic maps for image encryption in a wireless communication scheme using PIC-microcontroller via Zigbee channels

EE García-Guerrero, E Inzunza-González… - Chaos, Solitons & …, 2020 - Elsevier
Recently, a lot of research has been done in chaotic cryptography field using different kinds
of chaotic systems, like chaotic maps, which are being considered as one of the secure and …

A novel image encryption scheme based on 2D fractional chaotic map, DWT and 4D hyper-chaos

L Ding, Q Ding - Electronics, 2020 - mdpi.com
In this paper, a novel image encryption scheme based on a fractional-order Henon chaotic
map, a two-dimensional (2D) Discrete Wavelet Transform (DWT) and a four-dimensional …

Synthetic adaptive fuzzy disturbance observer and sliding-mode control for chaos-based secure communication systems

QD Nguyen, SC Huang - IEEE Access, 2021 - ieeexplore.ieee.org
This paper aims to present secure communication based on master and slave Lorenz
chaotic systems. To apply a form of the linear synchronization control method, the …

Identifying empirical equations of chaotic circuit from data

A Karimov, V Rybin, E Kopets, T Karimov… - Nonlinear …, 2023 - Springer
Chaotic analog circuits are commonly used to demonstrate the physical existence of chaotic
systems and investigate the variety of possible applications. A notable disparity between the …

Adaptive generalized synchronization between circuit and computer implementations of the Rössler system

A Karimov, A Tutueva, T Karimov, O Druzhina… - Applied Sciences, 2020 - mdpi.com
The synchronization between chaotic systems implemented in similar ways—eg, computer
models or circuits—is a well-investigated topic. Nevertheless, in many practical applications …

FPGA-based chaotic cryptosystem by using voice recognition as access key

E Rodríguez-Orozco, EE García-Guerrero… - Electronics, 2018 - mdpi.com
A new embedded chaotic cryptosystem is introduced herein with the aim to encrypt digital
images and performing speech recognition as an external access key. The proposed …

Synchronization of a new chaotic system using adaptive control: Design and experimental implementation

A Roldán-Caballero, JH Pérez-Cruz… - …, 2023 - Wiley Online Library
This paper presents the design of an adaptive controller that solves the synchronization
control problem of two identical Nwachioma chaotic systems in a master‐slave …

Sensitivity optimization and experimental study of the long-range metal detector based on chaotic duffing oscillator

T Karimov, O Druzhina, V Vatnik, E Ivanova, M Kulagin… - Sensors, 2022 - mdpi.com
Sensors based on chaotic oscillators have a simple design, combined with high sensitivity
and energy efficiency. Among many developed schemes of such sensors, the promising one …

Algebraic method for the reconstruction of partially observed nonlinear systems using differential and integral embedding

A Karimov, EG Nepomuceno, A Tutueva, D Butusov - Mathematics, 2020 - mdpi.com
The identification of partially observed continuous nonlinear systems from noisy and
incomplete data series is an actual problem in many branches of science, for example …

A random modulation spread-spectrum digital PWM for a low system clock digital buck converter

CH Moon, CJ Chen, SW Lee - IEEE Access, 2021 - ieeexplore.ieee.org
The need for a high-efficiency power system has emerged since many IoT devices are
mainly operated by batteries. A power system with analog control can have a high control …