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An optimized digital filter for the Fourier transform
Luleå tekniska universitet.
Luleå tekniska universitet.
1986 (English)In: Geophysical Prospecting, ISSN 0016-8025, E-ISSN 1365-2478, Vol. 34, no 6, p. 897-903Article in journal (Refereed) Published
Abstract [en]

Short filters for calculating Hankel-transformations, with special attention to the d.c.-sounding problem, have been published in recent years. These filters, with a typical length of less than 25 coefficients, have made it possible to implement, e.g. VES-interpretation programs on microcomputers and 3-D electric and electromagnetic modeling programs on minicomputers. Initially the performance of the short filters was rather poor, but with the introduction of short optimized filters there has been a considerable improvement in the accuracy. An optimization procedure is applied to design a 20-point filter for the Fourier sine-transformation. This filter may be useful in electromagnetic prospecting theory

Place, publisher, year, edition, pages
1986. Vol. 34, no 6, p. 897-903
National Category
Geochemistry
Research subject
Applied Geology
Identifiers
URN: urn:nbn:se:ltu:diva-6790Local ID: 515eccc0-2e33-11dd-9c9b-000ea68e967bOAI: oai:DiVA.org:ltu-6790DiVA: diva2:979676
Note
Godkänd; 1986; 20080530 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-21Bibliographically approved

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