Results 31 to 40 of about 170,615 (216)

A new simulation technique for RF oscillators [PDF]

, 2011
The study of phase-noise in oscillators and the design of new circuit topologies necessitates an efficient technique for the simulation of oscillators. While numerous approaches have been developed over the years e.g.
A. Iserles, Condon, Marissa, M. Condon, A. Deaño   +3 more
core   +2 more sources

FPGA-Based Chaotic Oscillator Designs and Performance Analysis

Chaos and Fractals
Chaotic systems are highly sensitive to initial conditions, where even minute changes can result in vastly different outcomes. The non-linear nature of chaotic systems prevents them from reaching a stable state, instead exhibiting continuous change ...
Muhammed Furkan Taşdemir, Murat Tuna, Ismail Koyuncu   +2 more
doaj   +1 more source

Descriptors to Dynamics: A Materials and Device Perspective on in‐Materio Physical Reservoir Computing for Neuromorphic Edge Intelligence

Advanced Materials, EarlyView.
Intrinsic material dynamics are harnessed as computational resources for neuromorphic in‐materio physical reservoir computing. Defects, ionic motion, interfaces, percolation, geometry, and biasing shape transient states that provide fading memory, nonlinearity, and high‐dimensional projection for simple readout. A descriptor‐to‐dynamics framework links
Kshitij RB Singh, Alif Syafiq Kamarol Zaman, Muzhen Xu, Yuki Usami, Saptarshi Das, Hirofumi Tanaka   +5 more
wiley   +1 more source

Research on the chaotic secure communication of the phase-space symmetric Lorenz oscillator group

Tongxin xuebao, 2019
To meet the demand of chaotic oscillators for large scale secure communications,the Lorenz oscillator was taken as an example,a phase-space symmetric chaotic oscillator group model was proposed and the synchronization problem was studied.According to the
Linfang LIU, Guosheng RUI, Yang ZHANG, Qianlong WU   +3 more
doaj   +2 more sources

Space‐Time Metasurface Antenna Enabled High‐Dimensional Electromagnetic Modulation for Intrinsic Physical Layer Security

Advanced Science, EarlyView.
The concept of high‐dimensional EM modulation using the STMA for physical layer secure communication is illustrated in figure. The STMA consists of a series of programmable unit cells, with 1‐bit reconfigurable phase states (0/π). The STMA is excited by a monochromatic continuous wave (CW) at frequency fc and controlled by a field‐programmable gate ...
Xinyu Fang, Yiqing Sun, Chenfeng Yang, Siran Wang, Zheng Xing Wang, Kaixu Wang, Geng‐Bo Wu   +6 more
wiley   +1 more source

Automatic simulation of 1D and 2D chaotic oscillators [PDF]

, 2008
A new method is introduced for automatic simulation of three kinds of chaotic oscillators: Chua’s circuit, generalized Chua’s circuit and chaotic oscillator implemented with saturated functions. The former generates the double-scroll, and the others 1D n-
JESUS MANUEL MUÑOZ PACHECO, ESTEBAN TLELO CUAUTLE   +1 more
core  

Observer-based secure communication using indirect coupled synchronization [PDF]

, 2012
In this paper, an observer-based secure communication system composed of four chaotic oscillators is proposed. Observer based synchronization is achieved between two of these oscillators and employed as a transmitter and a receiver.
Ghassemlooy, Zabih, Busawon, Krishna, Krishna Busawon, Z Ghassemlooy, Rupak Kharel, Kharel, Rupak   +5 more
core   +1 more source

Optimizing the Kaplan–Yorke Dimension of Chaotic Oscillators Applying DE and PSO

Technologies, 2019
When a new chaotic oscillator is introduced, it must accomplish characteristics like guaranteeing the existence of a positive Lyapunov exponent and a high Kaplan−Yorke dimension. In some cases, the coefficients of a mathematical model can be varied
Alejandro Silva-Juarez, Gustavo Rodriguez-Gomez, Luis Gerardo de la Fraga, Omar Guillen-Fernandez, Esteban Tlelo-Cuautle   +4 more
doaj   +1 more source

Loschmidt echo for a chaotic oscillator [PDF]

Physical Review E, 2004
Chaotic dynamics of a nonlinear oscillator is considered in the semiclassical approximation. The Loschmidt echo is calculated for a time scale which is of the power law in semiclassical parameter. It is shown that an exponential decay of the Loschmidt echo is due to a Lyapunov exponent and it has a pure classical nature.
openaire   +3 more sources

Neuromorphic Devices and Computing for Sensing, Memory, and Control

Advanced Science, EarlyView.
This review introduces neuromorphic devices made from diverse materials. These devices mimic neuronal functions and architectures and, when integrated with artificial or biological computing, can form closed loops with neurons for pressure, optical, acoustic, and biochemical sensing and modulation.
Zhengguang Zhu, Nicholas Schaffer, Xiao Yang   +2 more
wiley   +1 more source