Results 81 to 90 of about 6,198,913 (198)

Simplified LLR algorithm for m-QAM demodulation

open access: yesThe Journal of Engineering, 2019
Here, a simplified algorithm to calculate log-likelihood ratio (LLR) for m-QAM demodulation is proposed. Traditional method calculating LLR for m-QAM demodulation is supposed to do distance computing between any two constellation points so that the high ...
Xianle Cao, Yi Liu, Dongfang Hu
doaj   +1 more source

Automated scheme for linearisation points selection in TPWL method applied to non-linear circuits

open access: yesThe Journal of Engineering, 2019
Trajectory piecewise linear (TPWL) approximation is a well-known model order reduction technique for non-linear systems. It involves weighted summation of the dimensionally reduced linear systems obtained at certain points on the system trajectory.
Shifali Kalra, Mashuq-un Nabi
doaj   +1 more source

A Formalisation of Approximation Fixpoint Theory

open access: yes, 2021
A formalisation of approximation fixpoint theory in the theorem prover ...
Bogaerts, Bart, Cruz-Filipe, Luís
core   +1 more source

Distributed equalisation strategy for multi-battery energy storage systems

open access: yesThe Journal of Engineering, 2019
Multi-battery energy storage systems (MBESSs) are widely adopted to overcome the uncertainty problem of renewable energy sources. However, state-of-charge (SOC) imbalance issue of MBESSs brings great challenges to the optimal dispatching strategy and the
Feilong Fan   +4 more
doaj   +1 more source

Multiparameter extrapolation and deflation methods for solving equation systems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1984
Most models in economics and the applied sciences are solved by first order iterative techniques, usually those based on the Gauss-Seidel algorithm.
A. J. Hughes Hallett
doaj   +1 more source

Sequential optimisation of orthogonal waveforms for MIMO radar

open access: yesThe Journal of Engineering, 2019
The existing methods to design orthogonal waveforms for multiple-input multiple-output radar mainly focus on the optimisation of autocorrelation and cross-correlation properties.
Zhongrui Huang, Bo Tang, Shuo Zhang
doaj   +1 more source

Methods of Fourier analysis and approximation theory

open access: yes, 2016
Different facets of interplay between harmonic analysis and approximation theory are covered in this volume. The topics included are Fourier analysis, function spaces, optimization theory, partial differential equations, and their links to modern ...
Ruzhansky, MichaeleditorWE168020029013460000-0001-8633-55708B63EA9E-C5C8-11E8-8987-A2685607D3EF   +3 more
core   +1 more source

Study on surface electric field and ground nominal electric field of HVDC transimission line on slope terrain

open access: yesThe Journal of Engineering, 2019
In order to study the fast calculation method of a surface electric field of the arbitrary-quantity bundled conductor and a ground nominal electric field of the HVDC transmission line on slope terrain.
Chenguang Gao   +6 more
doaj   +1 more source

Topics in Multivariate Approximation

open access: yes, 1987
Topics in Multivariate Approximation contains the proceedings of an international workshop on multivariate approximation held at the University of Chile in Santiago, Chile, on December 15-19, 1986.
Schumaker, L. L.   +2 more
core  

Differential ratio approximation [PDF]

open access: yes, 2007
In this paper, we survey the fundamentals of the differential approximation theory, as well as some operational and structural results ...
AUSIELLO, Giorgio   +4 more
core   +1 more source

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