From local cosine bases to global harmonics

Kai Bittner, Charles K. Chui

Publikation: Beitrag in FachzeitschriftLeitartikel

3 Zitate (Scopus)


In this paper, the reproduction of trigonometric polynomials with two-overlapping local cosine bases is investigated. This study is motivated by the need to represent most effectively a Fourier series in the form of a localized cosine series for the purpose of local analysis, thus providing a vehicle for the transition from classical harmonic analysis to analysis by Wilson-type wavelets. It is shown that there is one and only one class, which is a one-parameter family, of window functions that allows pointwise reproduction of all global harmonics, where the parameter is the order of smoothness of the window functions. It turns out that this class of window functions is also optimal in the sense that all global harmonics are reproduced by using a minimal number of the local trigonometric basis functions.

Seiten (von - bis)382-399
FachzeitschriftApplied and Computational Harmonic Analysis
PublikationsstatusVeröffentlicht - Mai 1999
Extern publiziertJa


Untersuchen Sie die Forschungsthemen von „From local cosine bases to global harmonics“. Zusammen bilden sie einen einzigartigen Fingerprint.