Results 1 to 10 of about 209,496 (318)

Локально-одномерные схемы для уравнения, описывающего коагуляционные процессы в конвективных облаках, обладающих «памятью»

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2022
В статье рассматривается локально-одномерная разностная схема для параболического уравнения общего вида в p-мерном параллелепипеде. Для описания коагуляционных процессов в средах, обладающих «памятью», в уравнение включаются нелокальные (интегральные ...
Шхануков–Лафишев, М. Х.   +2 more
doaj   +1 more source

An Improved Imaging Algorithm for Multi-Receiver SAS System with Wide-Bandwidth Signal

open access: yesRemote Sensing, 2021
When the multi-receiver synthetic aperture sonar (SAS) works with a wide-bandwidth signal, the performance of the range-Doppler (R-D) algorithm is seriously affected by two approximation errors, i.e., point target reference spectrum (PTRS) error and ...
Xuebo Zhang, Peixuan Yang
doaj   +1 more source

Error bounds in stochastic-geometric normal approximation [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
We provide normal approximation error bounds for sums of the form $\sum_x \xi_x$, indexed by the points $x$ of a Poisson process (not necessarily homogeneous) in the unit $d$-cube, with each term $\xi_x$ determined by the configuration of Poisson points ...
Mathew Penrose, Tom Rosoman
doaj   +1 more source

Development and Research of a Modified Upwind Leapfrog Scheme for Solving Transport Problems

open access: yesMathematics, 2022
Modeling complex hydrodynamic processes in coastal systems is an important problem of mathematical modeling that cannot be solved analytically. The approximation of convective terms is difficult from the point of view of error reduction.
Alexander Sukhinov   +4 more
doaj   +1 more source

New Accurate Approximation for Average Error Probability

open access: yesIEEE Access, 2021
This paper proposes new accurate approximations for average error probability (AEP) of a communication system employing either M-phase-shift keying (PSK) or differential quaternary PSK with Gray coding (GC-DQPSK) modulation schemes over generalized ...
Yassine Mouchtak, Faissal El Bouanani
doaj   +1 more source

Approximate Adder with Reduced Error [PDF]

open access: yes2019 IEEE 31st International Conference on Microelectronics (MIEL), 2019
A new approximate adder is proposed, which is suitable for FPGA-and ASIC-based implementations. Here, we consider an Artix-7 FPGA for the implementations using Vivado 2018.3. For 32-bit addition, the proposed approximate adder with an 8-bit least significant inaccurate sub-adder reports an improvement in the maximum frequency by 7.7% compared to the ...
Balasubramanian, Padmanabhan   +2 more
openaire   +2 more sources

Fuzzy Adaptive Backstepping Control of Nonlinear Uncertain Systems With Unmeasured States and Input Saturation

open access: yesIEEE Access, 2020
Considering the uncertainties caused by multiple concurrent complex environments, we investigate the robust adaptive control of multi-source uncertain systems under unmeasurable states and input saturation.
Kai-Yu Hu, Aaly Yusuf, Zian Cheng
doaj   +1 more source

Influence of Binomial Crossover on Approximation Error of Evolutionary Algorithms

open access: yesMathematics, 2022
Although differential evolution (DE) algorithms perform well on a large variety of complicated optimization problems, only a few theoretical studies are focused on the working principle of DE algorithms.
Cong Wang, Jun He, Yu Chen, Xiufen Zou
doaj   +1 more source

A Bayesian Nonlinear Reduced Order Modeling Using Variational AutoEncoders

open access: yesFluids, 2022
This paper presents a new nonlinear projection based model reduction using convolutional Variational AutoEncoders (VAEs). This framework is applied on transient incompressible flows.
Nissrine Akkari   +3 more
doaj   +1 more source

An Approach for Impedance Matrix Computation Considering Phase Transposition on Distribution Lines

open access: yesIEEE Access, 2020
A renewed interest in phase frame analysis of distribution systems has surfaced in recent literature due to rapid expansion of grid-integrated distributed generation and non-linear loads, whose grid imbalance-increasing effects require more detailed ...
Henrique Pires Correa   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy