Results 21 to 30 of about 14,863 (259)

Memory Effects of High-Power Amplifiers in LSTM-Based Vehicular Channel Estimation

open access: yesIEEE Access, 2023
The upcoming sixth generation (6G) of wireless communication systems is expected to enable a wide range of new applications in vehicular communication. However, the use of multicarrier-based modulation in vehicular communication introduces challenges due
Ana Flavia Dos Reis   +4 more
doaj   +1 more source

Comparison of Different Wavelength Propagations over Few-Mode Fiber based on Space Division Multiplexing in Conjunction with Electrical Equalization [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2019
Nonlinearities in optical fibers deteriorate system performances and become a major performancelimiting issue. This article aims to investigate the compensation of nonlinear distortions in optical communication systems based on different wavelength ...
A. Al-Dawoodi   +7 more
doaj   +1 more source

Hyperbolic splines and nonlinear distortion

open access: yesIEEE Transactions on Signal Processing, 2000
Using Mobius transformations, we consider how to interpolate a set of monotone increasing data points (x/sub k/, y/sub k/) so that the interpolant is a smooth invertible function and that the interpolant and its inverse have the same simple functional form. We use our method to cancel jammer-induced distortion in a nonlinear channel.
Richard Martin, Ken Lever, Jeff McCarthy
openaire   +2 more sources

A Simplified Post Equalizer for Mitigating the Nonlinear Distortion in SiPM Based OFDM-VLC System

open access: yesIEEE Photonics Journal, 2022
The silicon photomultiplier (SiPM) based orthogonal frequency division multiplexing (OFDM) system is a promising solution to realize both the longer distance and higher data rate in visible light communication (VLC).
Long Zhang   +5 more
doaj   +1 more source

Coordinating economic growth and carbon emission reduction in China: evidence from the optimal levels of energy price distortions

open access: yesFrontiers in Energy Research, 2023
Distorted energy prices cause resource mismatch and hinder the coordinated development of economic growth and carbon emission reduction (CDEC) in China. Therefore, it is essential to determine the optimal levels of energy price distortions.
Ru Sha, Ru Sha
doaj   +1 more source

The simple analysis method of nonlinear frequency distortions in FMCW radar

open access: yesJournal of Telecommunications and Information Technology, 2001
The paper presents a simple method for estimating nonlinear frequency distortions of linear frequency modulated (LFM) signals used in FMCW radars. This method, derived from the polynomial model of the nonlinear FM signal phase, is based on finding the ...
Andrzej Wojtkiewicz   +3 more
doaj   +1 more source

Hybrid Look-Up-Tables Based Behavioral Model for Dynamic Nonlinear Power Amplifiers

open access: yesIEEE Access, 2020
A new look-up table based behavioral model for dynamic nonlinear power amplifiers is proposed. This model labelled as hybrid look-up tables model is based on the combination of a memoryless look-up table sub-model and a nested look-up tables one.
Ahmad I. Dalbah   +2 more
doaj   +1 more source

Synthesis of Resonance by Nonlinear Distortion Methods [PDF]

open access: yesComputer Music Journal, 2013
This article explores techniques for synthesizing resonant sounds using the principle of nonlinear distortion. These methods can be grouped under the heading of “subtractive synthesis without filters,” the case for which has been made in the literature.
Lazzarini, Victor, Timoney, Joseph
openaire   +2 more sources

Effect of frequency and flexibility ratio on the seismic response of deep tunnels

open access: yesUnderground Space, 2017
Two-dimensional dynamic numerical analyses have been conducted, using FLAC 7.0, to evaluate the seismic response of underground structures located far from the seismic source, placed in either linear-elastic or nonlinear elastoplastic ground.
Eimar Sandoval, Antonio Bobet
doaj   +1 more source

Nonlinearities of GaAlAs lasers - Harmonic distortion [PDF]

open access: yesIEEE Journal of Quantum Electronics, 1980
Narrow stripe lasers ( 2-6 \mu m) and transverse junction lasers exhibit excellent linearity. The dependence of relative second-and third-harmonic distortion is investigated as a function of modulation frequency and modulation current. Relative second- and third-harmonic distortion of -50 and -70 dB is observed for an optical signal of 4 mW p-p ( f_{m}
Stubkjær, Kristian, Danielsen, Magnus
openaire   +1 more source

Home - About - Disclaimer - Privacy