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Spherical panel clustering and its numerical aspects

  • In modern approximation methods linear combinations in terms of (space localizing) radial basis functions play an essential role. Areas of application are numerical integration formulas on the uni sphere omega corresponding to prescribed nodes, spherical spline interpolation, and spherical wavelet approximation. the evaluation of such a linear combination is a time consuming task, since a certain number of summations, multiplications and the calculation of scalar products are required. This paper presents a generalization of the panel clustering method in a spherical setup. The economy and efficiency of panel clustering is demonstrated for three fields of interest, namely upward continuation of the earth's gravitational potential, geoid computation by spherical splines and wavelet reconstruction of the gravitational potential.

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Metadaten
Author:Willi Freeden, Oliver Glockner, Michael Schreiner
URN:urn:nbn:de:hbz:386-kluedo-5888
Series (Serial Number):Berichte der Arbeitsgruppe Technomathematik (AGTM Report) (183)
Document Type:Preprint
Language of publication:English
Year of Completion:1997
Year of first Publication:1997
Publishing Institution:Technische Universität Kaiserslautern
Date of the Publication (Server):2000/04/03
Tag:Panel clustering; numerical integration; spline and wavelet based determination of the geoid and the gravitational potential
Note:
Altdaten, kein Volltext verfügbar ; Printversion in Bereichsbibliothek Mathematik vorhanden: MAT 144/620-183
Faculties / Organisational entities:Kaiserslautern - Fachbereich Mathematik
DDC-Cassification:5 Naturwissenschaften und Mathematik / 510 Mathematik
Licence (German):Standard gemäß KLUEDO-Leitlinien vor dem 27.05.2011