Math @ Duke

Publications [#287128] of Ingrid Daubechies
Papers Published
 Daubechies, I; Paul, T, Timefrequency localisation operatorsa geometric phase space approach: II. The use of dilations,
Inverse Problems, vol. 4 no. 3
(1988),
pp. 661680, ISSN 02665611 [doi]
(last updated on 2017/12/14)
Abstract: Operators which localise both in time and frequency are constructed. They restrict to a finite time interval and cut off low as well as high frequencies (bandpass filters). Explicit expressions for eigenvalues and eigenfunctions (Laguerre functions) are given.


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