Discrete two dimensional Fourier transform in polar coordinates part II: numerical computation and approximation of the continuous transform. [PDF]
The theory of the continuous two-dimensional (2D) Fourier Transform in polar coordinates has been recently developed but no discrete counterpart exists to date.
Yao X, Baddour N.
europepmc +3 more sources
Quantum Representations and Scaling Up Algorithms of Adaptive Sampled-Data in Log-Polar Coordinates. [PDF]
In log-polar coordinates, the conventional data sampling method is to sample uniformly in the log-polar radius and polar angle directions, which makes the sample at the fovea of the data denser than that of the peripheral.
Li C, Lu D, Dong H.
europepmc +2 more sources
Galilean transformation in polar coordinates and Doppler effect
First, the derivation of the Galilean transformation in polar coordinates from the Galilean transformation in Cartesian coordinates is presented.
Shukri Klinaku
exaly +3 more sources
Electroencephalography Enables Continuous Decoding of Hand Motion Angles in Polar Coordinates. [PDF]
Hand movements in task space are typically represented using either Cartesian or polar coordinate systems. While Cartesian coordinates are commonly used in electroencephalography (EEG)-based brain–computer interface (BCI) studies, polar coordinates offer
Lu X +6 more
europepmc +2 more sources
The Effect of GeoGebra on University Students’ Understanding of Polar Coordinates
This study sought to examine the impact of dynamic mathematics software, GeoGebra, on university mathematics students’ understanding of polar coordinates. A quasi-experimental design with an equivalent group of 42 participants in each group was used.
Yarhands Dissou Arthur, Raphaël Owusu
exaly +3 more sources
Discrete Two-Dimensional Fourier Transform in Polar Coordinates Part I: Theory and Operational Rules
The theory of the continuous two-dimensional (2D) Fourier transform in polar coordinates has been recently developed but no discrete counterpart exists to date.
Natalie Baddour
exaly +3 more sources
On the shape of curves that are rational in polar coordinates [PDF]
In this paper we provide a computational approach to the shape of curves which are rational in polar coordinates, i.e. which are defined by means of a parametrization (r(t),θ(t)) where both r(t),θ(t) are rational functions. Our study includes theoretical aspects on the shape of these curves, and algorithmic results which eventually lead to an algorithm
Juan G Alcazar
exaly +7 more sources
Polar coordinates in Taekwondo
Cristina Menescardi +2 more
doaj +3 more sources
Visual Field Coordinate Systems in Visual Neurophysiology [PDF]
In this work, algorithms have been developed to: 1. Compare visual field coordinate data, presented in different representation systems; 2. Determine the distance in degrees between any two points in the visual field; 3.
MARCELO GATTASS, RICARDO GATTASS
doaj +1 more source
ACCURACY ANALYSIS OF AIRCRAFT POSITIONING USING REAL RADAR AND GPS DATA [PDF]
This paper presents an analysis of the accuracy of aircraft positioning using radar and GPS satellite data. In particular, this study shows the results of research on determining the position of an aircraft, as well as the range and azimuth parameters ...
Adam CIEĆKO +3 more
doaj +1 more source

