Results 11 to 20 of about 7,689 (210)

Blind Estimation Methods for BPSK Signal Based on Duffing Oscillator [PDF]

open access: yesSensors, 2020
To realize the blind estimation of binary phase shift keying (BPSK) signal, this paper describe a new relational expression among the state of Duffing oscillator excited by BPSK signal, the pseudo-random code of BPSK signal, and the difference frequency ...
Ke Wang   +5 more
doaj   +2 more sources

Sensitivity Optimization and Experimental Study of the Long-Range Metal Detector Based on Chaotic Duffing Oscillator [PDF]

open access: yesSensors, 2022
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 is based on the Duffing oscillator, which possesses a remarkable property of ...
Timur Karimov   +7 more
doaj   +2 more sources

Analytical Approximant to a Quadratically Damped Duffing Oscillator [PDF]

open access: yesThe Scientific World Journal, 2022
The Duffing oscillator of a system with strong quadratic damping is considered. We give an elementary approximate analytical solution to this oscillator in terms of exponential and trigonometric functions.
Alvaro H. Salas S
doaj   +2 more sources

Analytical Approximant to a Quadratically Damped Forced Cubic-Quintic Duffing Oscillator [PDF]

open access: yesThe Scientific World Journal, 2022
The cubic-quintic Duffing oscillator of a system with strong quadratic damping and forcing is considered. We give elementary approximate analytical solution to this oscillator in terms of exponential and trigonometric functions. We compare the analytical
Alvaro H. S. Salas
doaj   +2 more sources

A Low Cost Duffing Oscillator

open access: yes, 2021
10 pages, 6 ...
Meer D, Myers E, Halpern R.
europepmc   +3 more sources

Amplification of very low output voltages of PV panels using a Duffing oscillator [PDF]

open access: yesHeliyon
We are interested in the amplification of very low voltages produced by solar cells during sunset or weak sunshine. The study uses a device consisting of a Duffing oscillator, which amplifies and automatically regulates a low-voltage input, an inverter ...
Hermann Frederic Emakoua   +4 more
doaj   +2 more sources

An analytical approximate technique for solving cubic–quintic Duffing oscillator

open access: yesAlexandria Engineering Journal, 2016
In this paper, an analytical approximate technique combined of homotopy perturbation method and variational formulation is presented to obtain the approximate frequency and the corresponding periodic solution of strongly nonlinear oscillator named as ...
Md Abdur Razzak
doaj   +3 more sources

A New Detecting Method for Underwater Acoustic Weak Signal Based on Differential Double Coupling Oscillator

open access: yesIEEE Access, 2021
For weak signal detection with known frequency, based on the double coupling Duffing oscillator method, a differential double coupling Duffing oscillator and Van der Pol-Duffing oscillator detection method is proposed.
Guohui Li, Jiuyang Cui, Hong Yang
doaj   +1 more source

Multistability of Globally Coupled Duffing Oscillators [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2021
We analyze the collective dynamics of an ensemble of globally coupled, externally forced, identical mechanical oscillators with cubic nonlinearity. Focus is put on solutions where the ensemble splits into two internally synchronized clusters, as a consequence of the bistability of individual oscillators. The multiplicity of these solutions, induced by
Sosa, Raúl I., Zanette, Damián H.
openaire   +3 more sources

Time after time - circadian clocks through the lens of oscillator theory. [PDF]

open access: yesFEBS Lett
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Del Olmo M, Ector C, Herzel H.
europepmc   +2 more sources

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