Results 31 to 40 of about 148,395 (284)

Improving soft FEC performance for higher-order modulations via optimized bit channel mappings [PDF]

open access: yes, 2014
Soft forward error correction with higher-order modulations is often implemented in practice via the pragmatic bit-interleaved coded modulation paradigm, where a single binary code is mapped to a nonbinary modulation.
Agrell, Erik   +4 more
core   +2 more sources

Low Complexity MPC-DSVPWM for Current Control of PMSM Using Neural Network Approach

open access: yesIEEE Access, 2022
Multilayer neural network-based model predictive control (MLNN-MPC) has received a lot of attention in different power electronic applications. However, the computational burden often imposes limitations in low-order DSPs especially if a large number of ...
Hasan Ali Gamal Al-Kaf, Kyo-Beum Lee
doaj   +1 more source

Asymptotic boundary forms for tight Gabor frames and lattice localization domains [PDF]

open access: yes, 2015
We consider Gabor localization operators $G_{\phi,\Omega}$ defined by two parameters, the generating function $\phi$ of a tight Gabor frame $\{\phi_\lambda\}_{\lambda \in \Lambda}$, parametrized by the elements of a given lattice $\Lambda \subset \Bbb{R}^
Bf A   +4 more
core   +1 more source

Improving the Drive System of Permanent Magnet Linear Synchronous Motor Based on Direct Thrust Force Control Applying Space Vector Modulation [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2012
Applying the direct thrust force control (DFC) method in permanent magnet linear synchronous motor (PMLSM) leads to some important problems. The most important disadvantages of applying this method are electromagnetic force and linkage flux big ripple ...
Mehdi Manoochehri   +2 more
doaj  

Single-Carrier Modulation versus OFDM for Millimeter-Wave Wireless MIMO

open access: yes, 2017
This paper presents results on the achievable spectral efficiency and on the energy efficiency for a wireless multiple-input-multiple-output (MIMO) link operating at millimeter wave frequencies (mmWave) in a typical 5G scenario.
Buzzi, Stefano   +4 more
core   +1 more source

An example of spectral phase transition phenomenon in a class of Jacobi matrices with periodically modulated weights

open access: yes, 2007
We consider self-adjoint unbounded Jacobi matrices with diagonal q_n=n and weights \lambda_n=c_n n, where c_n is a 2-periodical sequence of real numbers. The parameter space is decomposed into several separate regions, where the spectrum is either purely
D. Gilbert   +8 more
core   +1 more source

From modulational instability to focusing dam breaks in water waves [PDF]

open access: yes, 2020
We report water wave experiments performed in a long tank where we consider the evolution of nonlinear deep-water surface gravity waves with the envelope in the form of a large-scale rectangular barrier.
Bonnefoy, Félicien   +10 more
core   +3 more sources

Comparative Analysis of Input Power Factor Control Techniques in Matrix Converters Based on Model Predictive and Space Vector Control Schemes

open access: yesIEEE Access, 2019
Model Predictive Control (MPC) with a finite control set and space vector modulation (SVM) are the most common control methods for the matrix converters (MCs).
Zahra Malekjamshidi   +3 more
doaj   +1 more source

Modulated Unit-Norm Tight Frames for Compressed Sensing [PDF]

open access: yes, 2014
In this paper, we propose a compressed sensing (CS) framework that consists of three parts: a unit-norm tight frame (UTF), a random diagonal matrix and a column-wise orthonormal matrix.
Gan, Lu   +3 more
core   +1 more source

Reconciliation of a Quantum-Distributed Gaussian Key

open access: yes, 2001
Two parties, Alice and Bob, wish to distill a binary secret key out of a list of correlated variables that they share after running a quantum key distribution protocol based on continuous-spectrum quantum carriers.
Cardinal, J.   +2 more
core   +4 more sources

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