Results 61 to 70 of about 2,358,795 (324)
BER analysis of high-speed OFDM systems in the presence of time-interleaved analog-to-digital converter's offset mismatch [PDF]
, 2015 Time-interleaved analog-to-digital converters (TI-ADCs) are widely used for multi-Gigabit orthogonal frequency division multiplexing (OFDM) systems because of their attractive high sampling rate and high resolution. However, mismatch between the parallel
Huynh, Vo Trung Dung +2 more
core
Annals of Neurology, EarlyView.Objective Age of symptom onset is highly variable in familial frontotemporal lobar degeneration (f‐FTLD). Accurate prediction of onset would inform clinical management and trial enrollment. Prior studies indicate that individualized maps of brain atrophy can predict conversion to dementia in f‐FTLD.
Shubir Dutt +82 more
wiley +1 more source
Известия высших учебных заведений России: Радиоэлектроника, 2015 The problem of high-speed digital data transfer from a phased array antenna receiving module to the digital signal processing module with using domestically produced circuitry is concerned. The method of information transfer over nonlinear unsteady optic
A. I. Belyaev, A. V. Myakinkov
doaj
Performance Analysis of Turbo Codes
Communications, 2013 The article focuses on the performance analyses of Turbo Codes. These codes belong to the group of error correction codes. By their use, it is possible to achieve high system performance.
Jakub Sedy +3 more
doaj +1 more source
Derivations in the Banach ideals of $\tau$-compact operators [PDF]
, 2012 Let $\mathcal{M}$ be a von Neumann algebra equipped with a faithful normal semi-finite trace $\tau$ and let $S_0(\tau)$ be the algebra of all $\tau$-compact operators affiliated with $\mathcal{M}$. Let $E(\tau)\subseteq S_0(\tau)$ be a symmetric operator
Ber, A. F., Sukochev, F. A.
core
Angewandte Chemie, EarlyView.Schnelle RASER‐MRT ermöglicht Bildgebung ohne RF‐Anregung. Stattdessen wird eine Populationsinversion der Kernspins durch SABRE‐Hyperpolarisation erzeugt, die eine Selbstanregung durch RASER ermöglicht. Wenn die gewünschte transversale Magnetisierung aufgebaut ist, wird herkömmliche EPI‐Kodierung ausgelöst, um das Bild aufzuzeichnen.
Sören Lehmkuhl +7 more
wiley +1 more source
Analysis of Possibilities of Increasing the Spanned Distance Using EDFA and DRA in DWDM System
Communications, 2017 The aim of this article is a comparison of the EDFA (Erbium Doped Fibre Amplifier) and the DRA (Distributed Raman Amplifier) in a fully optical communication system, working on a specific wavelength. The amplifiers are compared based on their position in
Tomas Ivaniga +3 more
doaj +1 more source
Sum-rate maximisation comparison using incremental approaches with different constraints [PDF]
, 2009 In this work, the problem of rate maximisation of multichannel systems is considered. Two greedy allocation approaches using power (GPA) and bit (GBA) loading schemes with a slight difference in design constraints that aiming to maximise the overall ...
Al-Hanafy, Waleed, Weiss, S.
core
Comparison of Different Wavelength Propagations over Few-Mode Fiber based on Space Division Multiplexing in Conjunction with Electrical Equalization [PDF]
International 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
Angewandte Chemie International Edition, EarlyView.Rapid RASER MRI allows for image acquisition without RF excitation. Instead, a population inversion on the nuclear spins is generated by SABRE hyperpolarization, which allows for self‐excitation through the RASER approach. When the desired transverse magnetization is built‐up, conventional EPI encoding is triggered to record the image.
Sören Lehmkuhl +7 more
wiley +1 more source