Digital implementation of a nonlinear delayed-feedback system

1994 ◽  
Vol 41 (3) ◽  
pp. 238-242 ◽  
Author(s):  
T. Aida ◽  
N. Otani ◽  
P. Davis
Keyword(s):  
Feedback System ◽  
Delayed Feedback ◽  
Digital Implementation

Improving the security of optoelectronic delayed feedback system by parameter modulation and system coupling

2016 ◽  
Vol 55 (2) ◽  
pp. 026101 ◽  
Author(s):  
Lingfeng Liu ◽  
Suoxia Miao ◽  
Mengfan Cheng ◽  
Xiaojing Gao
Keyword(s):  
Feedback System ◽  
Delayed Feedback ◽  
Parameter Modulation ◽  
System Coupling

Hidden data transmission based on time-delayed feedback system with switched delay time

2012 ◽  
Vol 38 (1) ◽  
pp. 51-54 ◽  
Author(s):  
V. I. Ponomarenko ◽  
A. S. Karavaev ◽  
E. E. Glukhovskaya ◽  
M. D. Prokhorov
Keyword(s):  
Data Transmission ◽  
Delay Time ◽  
Feedback System ◽  
Delayed Feedback ◽  
Hidden Data ◽  
Time Delayed Feedback

scholarly journals Novel nondelay-based reservoir computing with a single micromechanical nonlinear resonator for high-efficiency information processing

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Jie Sun ◽  
Wuhao Yang ◽  
Tianyi Zheng ◽  
Xingyin Xiong ◽  
Yunfei Liu ◽  
...  
Keyword(s):  
Nonlinear Dynamics ◽  
Information Processing ◽  
Feedback Loop ◽  
Nonlinear Response ◽  
High Efficiency ◽  
Moving Average ◽  
Feedback System ◽  
Human Motion ◽  
Delayed Feedback ◽  
Reservoir Computing

AbstractReservoir computing is a potential neuromorphic paradigm for promoting future disruptive applications in the era of the Internet of Things, owing to its well-known low training cost and compatibility with hardware. It has been successfully implemented by injecting an input signal into a spatially extended reservoir of nonlinear nodes or a temporally extended reservoir of a delayed feedback system to perform temporal information processing. Here we propose a novel nondelay-based reservoir computer using only a single micromechanical resonator with hybrid nonlinear dynamics that removes the usually required delayed feedback loop. The hybrid nonlinear dynamics of the resonator comprise a transient nonlinear response, and a Duffing nonlinear response is first used for reservoir computing. Due to the richness of this nonlinearity, the usually required delayed feedback loop can be omitted. To further simplify and improve the efficiency of reservoir computing, a self-masking process is utilized in our novel reservoir computer. Specifically, we numerically and experimentally demonstrate its excellent performance, and our system achieves a high recognition accuracy of 93% on a handwritten digit recognition benchmark and a normalized mean square error of 0.051 in a nonlinear autoregressive moving average task, which reveals its memory capacity. Furthermore, it also achieves 97.17 ± 1% accuracy on an actual human motion gesture classification task constructed from a six-axis IMU sensor. These remarkable results verify the feasibility of our system and open up a new pathway for the hardware implementation of reservoir computing.

scholarly journals Intricate routes to chaos in the Mackey–Glass delayed feedback system

2012 ◽  
Vol 376 (30-31) ◽  
pp. 2109-2116 ◽  
Author(s):  
Leandro Junges ◽  
Jason A.C. Gallas
Keyword(s):  
Feedback System ◽  
Delayed Feedback ◽  
Routes To Chaos

Iterative Association

1965 ◽  
Vol 20 (2) ◽  
pp. 617-627 ◽  
Author(s):  
Bill J. Baldridge ◽  
Frank H. Hustmyer
Keyword(s):  
Word Association ◽  
External Disturbance ◽  
Feedback System ◽  
Delayed Feedback ◽  
Association Test ◽  
Emotional Stimuli ◽  
Initial Stimulus ◽  
Word Association Test ◽  
Free Word

A method of combining free word association with the engineering principles of servomechanisms is presented. It provides a focusing and amplifying of the word association test by incorporating S into a closed delayed feedback system in which he provides both the stimulus and the response words. The system is set into motion by an external disturbance in the form of initial stimulus words provided by E. With this arrangement S continues to associate to his own responses until interrupted. His associations converge on a small number of topics in a manner which is characteristic of him and independent of the initial stimulus words. After 10 successive cycles of associating to their own responses, 25 Ss converged on 3 topics from an average of 9 of the 15 beginning stimulus words. Much affective material was introduced by Ss even in the absence of original emotional stimuli.

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