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28 448 (0,161s)

Result

Harmonic approximation and Sarason's type theorem

Harmonic approximation and Sarason's type theorem...

BA - Obecná matematika

  • 2003
  • Jx
Result

Fast Approximation to Spherical Harmonic Rotation

present an efficient approximation of the spherical harmonic rotation applicable for small rotation angles. We replace the general spherical harmonic rotation matrixRotation of functions represented by spherical harmon...

JC - Počítačový hardware a software

  • 2006
  • D
Result

Spectral Characteristics of Nonlinear Systems Approximated by Piecewise Linear Function

be approximated via piecewise linear function. The paper also deals with relations between the mutual harmonics ratio and the approximation parameters. Furthermore, the dependence of the harmonics ratio on the amp...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2008
  • D
Result

A new perspective on some approximations used in neutron transport modeling

In this contribution, we will use the Maxwell-Cartesian spherical harmonics (introduced in [1, 2]) to derive a system of partial differential equations governing to thewell known P-N approximation, which is based on the expansion in...

BA - Obecná matematika

  • 2013
  • D
Result

An Experimental Method for Predicting the Magnetic Properties of Ferromagnetic Materials Subjected to Harmonic Excitation

was tested and verified. It is based on the approximation of waveforms in the time domain approximation. In order to predict the waveform or a hysteresis loop, experiments were performed using systematically increasing harmonic...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2013
  • D
  • Link
Result

Characteristics of Broken-Line Approximation and Its Use in Distortion Audio Effects

be approximated via broken-line function. The paper also deals with relations between the harmonics ratio and the approximation parameters. Furthermore, the dependence of the harmonics ratio on the amplitude of a ...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2007
  • D
Result

Fourier approximation of the voltage space vectors

The paper investigates the harmonic spectrum of the different schemes of VSI.These spectrum is compared by means of THD.

JA - Elektronika a optoelektronika, elektrotechnika

  • 2005
  • D
Result

Fourier approximation of voltage space-vectors in three-level VSI with SVPWM

The paper proposes an analytical model for calculating the harmonic spectra of a three-level voltage source inverter with space-vector PWM...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2005
  • Jx
Result

Spacetime Modeling of the Earth's Gravity Field by Ellipsoidal Harmonics

harmonics and ellipsoidal wavelets, an approximation of its gravity field which is three times faster convergent when compared to the "ruling the world" spherical harmonics......

DE - Zemský magnetismus, geodesie, geografie

  • 2010
  • C
Result

Construction of Galerkin’s Matrix for Elementary Potentials and an Ellipsoidal Solution Domain Based on Series Developments and General Relations between Legendre’s Functions of the first and the Second Kind: Application in Earth’s Gravity Field Studies

potential. Galerkin’s approximations are applied, which means that the solution of the problem is approximated by linear combinations of basis functions with scalar functions generated by elementary potentials. Ellipsoidal harm...

DE - Zemský magnetismus, geodesie, geografie

  • 2016
  • O
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