Results 51 to 60 of about 8,459 (175)

Maximum-LikelihoodSemiblind Equalization of Doubly Selective Channels Using the EM Algorithm

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
Maximum-likelihood semi-blind joint channel estimation and equalization for doubly selective channels and single-carrier systems is proposed. We model the doubly selective channel as an FIR filter where each filter tap is modeled as a linear combination
Kutz Gideon, Raphaeli Dan
doaj   +2 more sources

Iterative Detection Scheme for Turbo-BLAST System Based on Soft Interference Cancellation

open access: yes工程科学与技术, 2008
:he Turbo-BLAST detection can effectively cancel the spatial interference from the conventional V-BLAST (Vertical Bell Lab’s Layered Space Time) system.
doaj  

Diagnostic value of the patellar tendon–lateral trochlear ridge distance and the patellar tendon–trochlear groove angle in differentiating lateral patellar instability from malalignment‐induced patellofemoral pain

open access: yesKnee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To compare the patellar tendon–lateral trochlear ridge (PT‐LTR) distance and patellar tendon–trochlear groove angle (PT‐TGA) between patients with lateral patellar instability (LPI) and those with malalignment‐induced patellofemoral pain (PFP), and to evaluate their differential diagnostic validity.
Razvan Pacala   +5 more
wiley   +1 more source

THE NUMERICAL-FIELD ANALYSIS OF THE MAGNETIC FIELD AND THE ELECTRICAL QUANTITIES IN THE TURBOGENERATOR STATOR UNDER AUTONOMOUS UNBALANCED LOADING

open access: yesElectrical engineering & Electromechanics, 2016
Purpose. Assessing the impact of load asymmetry of turbogenerator (TG) on the magnetic field distribution, on the electrical and energy processes in it based on the numerical-field analysis within the constraints regulated by the standards.
V. I. Milykh
doaj   +1 more source

SNR‐Efficient Inhomogeneous Magnetization Transfer (ihMT) for Clinical Applications at 7 T

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Inhomogeneous MT (ihMT) is an MRI modality sensitive to Myelin, the lipid‐rich membrane surrounding the axons. A novel ihMT saturation strategy and its associated B1+$$ {\mathrm{B}}_1^{+} $$ correction at UHF are proposed. The aim is to generate a strong ihMT effect within a clinically compatible scan time while complying with SAR ...
Timothy Anderson   +8 more
wiley   +1 more source

Turbo-per-Tone Equalization for ADSL Systems

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
We study the equalization procedure in discrete multitone (DMT)-based systems, in particular, in DMT-based ADSL systems. Traditionally, equalization is performed in the time domain by means of a channel shortening filter.
Vanhaute Hilde, Moonen Marc
doaj   +1 more source

Inter‐Shot Motion Correction of Segmented 3D‐GRASE ASL Perfusion Imaging With Self‐Navigation and CAIPI

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Segmented 3D Gradient and Spin Echo (GRASE) is commonly used in Arterial Spin Labeling (ASL) perfusion imaging. However, it is vulnerable to inter‐shot motion, leading to subtraction errors that cannot be corrected. We developed a retrospective self‐navigated inter‐shot motion correction method for segmented 3D‐GRASE ASL imaging with ...
Minhao Hu   +5 more
wiley   +1 more source

Experimental Investigation of Inductive Sensor Characteristic for Blade Tip Clearance Measurement at High Temperature

open access: yesSensors, 2019
Turbine tip clearance of aero-engine is important to engine performance. Proper tip clearance can reduce the gas leakage over turbine blade tips and improve the engine efficiency of turbo machinery and reduce the fuel consumption. Therefore, accurate tip
Zhenxia Liu   +3 more
doaj   +1 more source

Zero‐Shot Self‐Supervised Learning of Single Breath‐Hold Magnetic Resonance Cholangiopancreatography (MRCP) Reconstruction

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To investigate the feasibility of zero‐shot self‐supervised learning reconstruction for reducing breath‐hold times in magnetic resonance cholangiopancreatography (MRCP). Methods Breath‐hold MRCP was acquired from 11 healthy volunteers on 3T scanners using an incoherent k‐space sampling pattern, leading to a 14‐s acquisition time and an
Jinho Kim   +2 more
wiley   +1 more source

Design of an 8‐Channel Transmit 32‐Channel Receive 11.7T Head Coil and Evaluation of SNR Gains

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To design and develop an 8‐channel transmit 32‐channel receive 11.7T head coil for the strongest human MRI scanner to date, demonstrate safety, and evaluate signal‐to‐noise ratio (SNR) gains compared to 7T, the most used ultra‐high‐field (UHF) platform.
Son Chu   +8 more
wiley   +1 more source

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