Analysis of nonlinear frequency mixing in Timoshenko beams with a breathing crack using wavelet spectral finite element method
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115532
Abstract: Abstract The nonlinear interaction of a dual-frequency Lamb wave with a breathing edge-crack leads to the generation of frequency sidebands in the response spectrum; a phenomenon referred to as the nonlinear frequency mixing. These sidebands… read more here.
Keywords: frequency; spectral finite; nonlinear frequency; breathing crack ... See more keywords
Nonlinear frequency and chaotic motion of the honeycomb higher-order disk with graphene nanoplatelets face sheets subjected to harmonic excitation via two-dimensional analysis
Sign Up to like & getrecommendations! Published in 2021 at "Mechanics Based Design of Structures and Machines"
DOI: 10.1080/15397734.2021.1903493
Abstract: Honeycomb structures are one type of structure that has the geometry of a honeycomb to allow the minimization of the amount of used material to reach minimal material cost and minimal weight. For t... read more here.
Keywords: chaotic motion; honeycomb higher; nonlinear frequency; honeycomb ... See more keywords
Impact of Perturbations on Nonlinear Frequency-Division Multiplexing
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2018.2798412
Abstract: Nonlinear frequency-division multiplexing (NFDM) is a communication scheme in which users’ signals are multiplexed in the nonlinear Fourier domain. The contributions of this paper are twofold. First, the achievable information rates (AIRs) of NFDM based… read more here.
Keywords: division multiplexing; division; frequency division; nonlinear frequency ... See more keywords
Experimental Demonstration of Nonlinear Frequency Division Multiplexing Transmission With Neural Network Receiver
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2020.3016685
Abstract: Nonlinear frequency division multiplexing (NFDM) communication systems that are based on the nonlinear Fourier transform (NFT), have seen a rapid improvement in performance and transmission reach over just a few years. However, such an improvement… read more here.
Keywords: frequency division; division multiplexing; nonlinear frequency; transmission ... See more keywords
Why Noise and Dispersion May Seriously Hamper Nonlinear Frequency-Division Multiplexing
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2017.2722040
Abstract: The performance of optical fiber systems based on nonlinear frequency-division multiplexing (NFDM) or on more conventional transmission techniques is compared through numerical simulations. Some critical issues affecting NFDM systems—namely, the strict requirements needed to avoid… read more here.
Keywords: division multiplexing; dispersion; frequency division; nonlinear frequency ... See more keywords
Structural health monitoring through nonlinear frequency-based approaches for conservative vibratory systems
Sign Up to like & getrecommendations! Published in 2020 at "Structural Engineering and Mechanics"
DOI: 10.12989/sem.2020.73.3.331
Abstract: This paper proposes a new approximate analytical solution for highly nonlinear vibration of mechanical systems called Hamiltonian Approach (HA) that can be widely use for structural health monitoring systems. The complete procedure of the HA… read more here.
Keywords: health monitoring; structural health; monitoring nonlinear; nonlinear frequency ... See more keywords
Linear optical sampling enabled soliton nonlinear frequency spectrum classification.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.462114
Abstract: Nonlinear Fourier transform (NFT) is a powerful tool for characterizing optical soliton dynamics, which, however, suffers from fundamental limitations that ultra-wide bandwidth photodetectors and ultra-high sampling rate analog-to-digital converters should be used when accessing the… read more here.
Keywords: frequency spectrum; optical sampling; nonlinear frequency; linear optical ... See more keywords
Two-stage artificial neural network-based burst-subcarrier joint equalization in nonlinear frequency division multiplexing systems.
Sign Up to like & getrecommendations! Published in 2021 at "Optics letters"
DOI: 10.1364/ol.422195
Abstract: We propose an artificial neural network (ANN)-based scheme to improve the performance of nonlinear frequency division multiplexing (NFDM) optical transmission systems in both time and frequency domain. Through two-stage ANN equalization at the receiver side,… read more here.
Keywords: neural network; frequency division; frequency; artificial neural ... See more keywords
Nonlinear frequency conversion and manipulation of vector beams.
Sign Up to like & getrecommendations! Published in 2018 at "Optics letters"
DOI: 10.1364/ol.43.005981
Abstract: Vector beams have been extensively investigated in recent years because of their fascinating vector character across the beam transverse section, which is demonstrated to be useful for optical micro-manipulation, optical micro-fabrication, optical communication, single molecule… read more here.
Keywords: vector; nonlinear frequency; vector beams; frequency conversion ... See more keywords