AI Chat AI Image Generator AI Video Text to Speech

Trigonometric splines in spectral problems

10/02/2019

∙

by V. P. Denysiuk, et al.

∙

∙

Some questions of application of trigonometric splines in problems of spectral analysis are considered. The known effects of overlay in the frequency and time domains are discussed; deployment effects in these areas are firstly considered. The relation between discrete Fourier coefficients and Fourier coefficients of trigonometric splines was obtained. The expediency of taking into account the differential properties of the investigated signals that are losing during the primary sampling is shown.

page 1

page 2

page 3

page 4

research

∙ 05/27/2020

Asymptotic Spectral Theory for Spatial Data

In this paper we study the asymptotic theory for spectral analysis in st...

0 Wai Leong Ng, et al. ∙

research

∙ 03/21/2021

Approximation, regularization and smoothing of trigonometric splines

The methods of approximation, regularization and smoothing of trigonomet...

0 V. Denysiuk, et al. ∙

research

∙ 10/11/2016

Quantum spectral analysis: frequency at time (a lecture)

A quantum time-dependent spectrum analysis, or simply, quantum spectral ...

0 Mario Mastriani, et al. ∙

research

∙ 12/18/2019

IsoGeometric Approximations for Electromagnetic Problems in Axisymmetric Domains

We propose a numerical method for the solution of electromagnetic proble...

0 Abele Simona, et al. ∙

research

∙ 04/01/2020

From Fourier to Koopman: Spectral Methods for Long-term Time Series Prediction

We propose spectral methods for long-term forecasting of temporal signal...

0 Henning Lange, et al. ∙

research

∙ 04/15/2020

Characterization of Sobolev spaces by their Fourier coefficients in axisymmetric domains

Using Fourier series representations of functions on axisymmetric domain...

0 {Martin Costabel, et al. ∙

research

∙ 03/13/2021

Exact Reconstruction of Extended Exponential Sums using Rational Approximation of their Fourier Coefficients

In this paper we derive a new recovery procedure for the reconstruction ...

0 Nadiia Derevianko, et al. ∙