Results 11 to 20 of about 22,150,955 (299)
Harmonic Analysis for Real Spherical Spaces [PDF]
Shortened title, typos fixed, more details on dual smooth Frobenius reciprocity (now Lemma 6.6). 38 pages, lecture notes for the Sanya meeting on spherical varieties.
Krötz, Bernhard, Schlichtkrull, Henrik
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Analysis of binning of normals for spherical harmonic cross-correlation [PDF]
Spherical harmonic cross-correlation is a robust registration technique that uses the normals of two overlapping meshes to bring them into coarse rotational alignment. The amount of overlap between the two meshes is the primary determinant of whether the spherical harmonic cross-correlation achieves correct registration.
Robert L. Larkins +2 more
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Harmonic Analysis of Spherical Four-Bar Mechanisms
Understanding the dynamic behavior of mechanisms, which is essential to their high-speed applications, demands a clear knowledge of the acceleration of the output relative to input. Such knowledge can be ascertained by means of harmonic analysis of the motion of mechanisms.
A. T. Yang
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A spherical harmonic analysis of redshift space [PDF]
We re-examine the effects of redshift space distortion in all-sky galaxy redshift surveys in the formalism of spherical harmonics. Within this framework we show how one can treat both the large-scale linear effects, and the small-scale nonlinear clustering, exactly to first order.
Heavens, A. F., Taylor, A. N.
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Discrete Analogues in Harmonic Analysis: Spherical Averages [PDF]
In this paper we prove an analogue in the discrete setting of \Bbb Z^d, of the spherical maximal theorem for \Bbb R^d. The methods used are two-fold: the application of certain "sampling" techniques, and ideas arising in the study of the number of representations of an integer as a sum of d squares in particular, the "circle method".
Magyar, Ákos +2 more
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Local determination of ionospheric plasma convection from coherent scatter radar data using the SECS technique [PDF]
A new technique for merging line-of-sight (LOS) data of the ionospheric plasma convection velocity, as obtained from coherent scatter radars, into a full velocity vector field on a sphere is presented.
Tim K. Yeoman (7583066) +7 more
core +4 more sources
Spherical harmonic analysis of cortical complexity in autism and dyslexia. [PDF]
Abstract Alterations in gyral form and complexity have been consistently noted in both autism and dyslexia. In this present study, we apply spherical harmonics, an established technique which we have exapted to estimate surface complexity of the brain, in order to identify abnormalities in gyrification between autistics, dyslexics, and ...
Williams EL +4 more
europepmc +4 more sources
Spherical harmonic analysis of equalization in a reverberant room [PDF]
We investigate the performance of acoustic equalization in reverberant environments. We first highlight an efficient general representation of a sound field using spherical harmonics. We then use this representation to develop a concise closed-form expression for robustness of equalization to sensor movement. This expression is used (i) to characterize
Terence Betlehem, Thushara D. Abhayapala
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APPLYING THE METHOD OF MAXIMUM CONTRIBUTIONS TO THE MAGNETOGRAM INVERSION TECHNIQUE
Fundamentals of the spherical harmonic analysis (SHA) of the geomagnetic field were created by Gauss. They acquired the classical Chapman — Schmidt form in the first half of the XXth century.
Yu.V. Penskikh
doaj +1 more source
We present a method for computing a spherical harmonic representation of a sound field based on observations of the sound pressure along the equator of a rigid spherical scatterer.
Hannes Helmholz +11 more
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