Results 31 to 40 of about 14,863 (259)
Digital Signal Extraction by Means of Nonlinear Stochastic Filtration
Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2018 The results of noise immunity analysis for digital communication systems using methods of nonlinear filtering are given. Nonlinear filtration is based on stochastic resonance effect.
O. I. Kharchenko, V. M. Kartashov
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Nonlinear Channel Equalization Using Gaussian Processes Regression in IMDD Fiber Link
IEEE Photonics Journal, 2022 Gaussian processes regression (GPR)-aided nonlinear channel equalizer (CE) is experimentally demonstrated in a multi-level intensity modulation and direct detection fiber link.
Xiang Li +4 more
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Modal Identification Using OMA Techniques: Nonlinearity Effect
Shock and Vibration, 2015 This paper is focused on an assessment of the state of the art of operational modal analysis (OMA) methodologies in estimating modal parameters from output responses of nonlinear structures.
E. Zhang, R. Pintelon, P. Guillaume
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Performance-Enhanced DMT System With Joint Precoding and Probabilistic Constellation Shaping
IEEE Photonics Journal, 2021 The promising solution for short-reach optical communication, discrete multitone (DMT) system suffer from high peak-to-average power ratio (PAPR).
Tianhao Tong +6 more
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Dimensional crossover in a layered ferromagnet detected by spin correlation driven distortions
Nature Communications, 2019 Exploring lattice distortions from magnetic short-range ordering (SRO) facilitates the understanding of magnetic long-range ordering (LRO). Here the authors apply high-multipole nonlinear optical polarimetry to track SRO induced distortions in CrSiTe3 ...
A. Ron +4 more
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Power Amplifier Predistortion Using Reduced Sampling Rates in the Forward and Feedback Paths
SensorsThe feasibility of implementing digital predistortion for next-generation wireless communication is faced with a dilemma due to the ever-increasing demand for faster data rates. This causes the utilized bandwidth to increase significantly, as seen in the
Serien Ahmed +3 more
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Nonlinear Distortions in Electroacoustic Devices
Archives of Acoustics, 2013 The task of electroacoustic devices is a transmission of audio signals. The transmitted signal should be distorted as little as possible. Nonlinear distortions are the distortions depending on signal level. The types of nonlinear distortions as well as
Andrzej DOBRUCKI
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Analysis and optimization of multistage amplifier structures
Физика волновых процессов и радиотехнические системы, 2013 The method for compensation of 2-nd and 3-rd order nonlinear distortions in multistage amplifiers is considered. It is shown, that equalization of nonlinear components in multistage structures is determined by schemes of one-from-last and last cascades ...
A.M. Bobreshov +3 more
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IEEE Photonics Journal, 2020 We experimentally demonstrate the simultaneous compensation of both dispersion and nonlinear effects in a 100 km optical fiber link using optical phase conjugation of a 21 GB aud QPSK and 16QAM signal with nonlinear SOAs. Error-free performance is
Aneesh Sobhanan +3 more
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Distortion-Free Nonlinear Dimensionality Reduction [PDF]
, 2008 Nonlinear Dimensionality Reduction is an important issue in many machine learning areas where essentially low-dimensional data is nonlinearly embedded in some high-dimensional space. In this paper, we show that the existing Laplacian Eigenmaps method suffers from the distortion problem, and propose a new distortion-free dimensionality reduction method ...
Yangqing Jia +2 more
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