Results 1 to 10 of about 97,205 (169)

Ensembling a Learned Volterra Polynomial with a Neural Network for Joint Nonlinear Distortions and Mismatch Errors Calibration of Time-Interleaved Pipelined ADCs [PDF]

Sensors
The inherent non-ideal characteristics of circuit components and inter-channel mismatch errors induce nonlinear amplitude and phase distortions in time-interleaved pipelined analog-to-digital converters (TI-pipelined ADCs), significantly degrading system
Yan Liu, Mingyu Hao, Hui Xu, Xiang Gao, Haiyong Zheng   +4 more
doaj   +2 more sources

A Look-Up Table Assisted BiLSTM Neural Network Based Digital Predistorter for Wireless Communication Infrastructure [PDF]

Sensors
Neural networks are increasingly attractive for digital predistortion applications due to their demonstrated superior performance. This is mainly attributed to their ability to capture the intrinsic traits of nonlinear systems.
Reem Al Najjar, Oualid Hammi
doaj   +2 more sources

vEMRec: High‐Resolution Volume Electron Microscopy Reconstruction Based on Structure‐Preserving and High‐Fidelity 3D Alignment [PDF]

Advanced Science
Three‐dimensional (3D) alignment is a key step in volume electron microscopy (vEM), aimed at addressing misalignment during data acquisition, thereby recovering the correct biological structures.
Zhenbang Zhang, Hongjia Li, Zhongjun Yang, Zhiqiang Xu, Duanchen Sun, Xin Gao, Fa Zhang, Renmin Han   +7 more
doaj   +2 more sources

Analysis of the Structure of Nonlinear Distortions at Baseband Pulse Impacts Using Behavioral Nonlinear Models of Electrical Circuits

Известия высших учебных заведений России: Радиоэлектроника, 2022
Introduction. Measuring harmonic distortions of a baseband pulse signal constitutes a problem due to the continuous nature of their spectrum. In order to obtain nonlinear distortions of a signal, a comparison should be conducted either of the object’s ...
E. V. Semyonov
doaj   +1 more source

Computation of Nonlinear Load Harmonic Currents in the Presence of External Distortions

Computation, 2022
This paper deals with the issues of computation of the nonlinear load harmonic currents in the presence of external distortions based on the real measurements with help of passive harmonic.
Aleksandr Skamyin, Aleksey Belsky, Vasiliy Dobush, Ilya Gurevich   +3 more
doaj   +1 more source

A MEMS Mirror-Based Confocal Laser Endomicroscope with Image Distortion Correction

IEEE Photonics Journal, 2023
Scanning MEMS mirrors can extend confocal laser microscopy into endoscopic applications, but the practical use of MEMS mirror-based confocal endomicroscopy is hindered partially by various image distortions such as barrel, fan-shaped and nonlinear ...
Teng Pan, Xun Gao, Hengzhang Yang, Yingchao Cao, Hui Zhao, Qian Chen, Huikai Xie   +6 more
doaj   +1 more source

An Adaptive Strategy to Compensate Nonlinear Effects of Voltage Source Inverters Based on Artificial Neural Networks

IEEE Access, 2020
In motor drives, distortions of phase voltages and currents are often caused by nonlinear effects of inverters such as dead time, turn-on delay, turn-off delay and voltage drop of power devices.
Tao Liu, Qidong Li, Qiaoling Tong, Qiao Zhang, Kan Liu   +4 more
doaj   +1 more source

Nonlinear Resilient Learning Method Based on Joint Time-Frequency Image Analysis in Underwater Visible Light Communication

IEEE Photonics Journal, 2020
In this paper, we propose a novel nonlinear resilient learning post equalizer named TFDNet in UVLC system. Unlike the traditional deep neural network (DNN) based post equalizers which merely consider the time domain, the proposed TFDNet exploits time ...
Hui Chen, Yiheng Zhao, Fangchen Hu, Nan Chi   +3 more
doaj   +1 more source

Algorithm of FBG Spectrum Distortion Correction for Optical Spectra Analyzers with CCD Elements

Sensors, 2021
Nonlinear spectrum distortions are caused by the peculiarities of the operation of charge-coupled device elements (CCD), in which the signal exposition time (Time of INTegration–TINT) is one of the significant parameters.
Vladimir Anfinogentov, Kamil Karimov, Artem Kuznetsov, Oleg G. Morozov, Ilnur Nureev, Airat Sakhabutdinov, Konstantin Lipatnikov, Safaa M. R. H. Hussein, Mustafa H. Ali   +8 more
doaj   +1 more source

Focusing and Compression of Ultrashort Pulses through Scattering Media [PDF]

, 2011
Light scattering in inhomogeneous media induces wavefront distortions which pose an inherent limitation in many optical applications. Examples range from microscopy and nanosurgery to astronomy.
A Assion, A Derode, AM Weiner, BA Wilt, BJ Pearson, BK Andrasfalvy, C-L Hsieh, D Oron, D Oron, D Yelin, E Small, E Tal, Eran Small, F Lemoult, G Lerosey, H Rabitz, H Szmacinski, IM Vellekoop, IM Vellekoop, IM Vellekoop, IM Vellekoop, IM Vellekoop, J Aulbach, JC Diels, JM Dela Cruz, JW Goodman, M Aeschlimann, M Cui, M Fink, M Oheim, M Rueckel, MA Webster, MI Stockman, MJ Booth, NC Bruce, Ori Katz, P Sebbah, PM Johnson, RK Tyson, S Popoff, SM Popoff, T Čižmár, W Denk, Y Jiang, Yaron Bromberg, Yaron Silberberg, Z Yaqoob   +46 more
core   +1 more source