ALBERT — All Library Books, journals and Electronic Records Telegrafenberg

Treffer pro Seite

Treffer 1 - 2 | 2 Treffer

Sortierung

Digitale Medien

A piecewise exponential model for seismic well-logging data (1974)

Jupp, D. L. ; Stewart, Ian C. F.

Springer

Mathematical geology 6 (1974), S. 33-45

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 1573-8868

Schlagwort(e): inversion of data ; mathematics ; numerical analysis ; regression analysis ; geophysics ; petroleum ; well logging

Quelle: Springer Online Journal Archives 1860-2000

Thema: Geologie und Paläontologie , Mathematik

Notizen: Abstract Conventional methods of analyzing sonic log data do not always yield accurate information on each velocity segment of a well. It is shown here that the velocity-depth parameters and the sections of approximately constant velocity may be more precisely defined by using an exponential spline to model the data.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF02111925

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

Digitale Medien

Filtering of discrete time series by symmetric least-squares operators (1974)

Chan, S. H. ; Leong, L. S.

Springer

Mathematical geology 6 (1974), S. 153-171

zur Merkliste hinzufügen auf der Merkliste

Details

ISSN: 1573-8868

Schlagwort(e): filtering ; least squares ; power-spectrum analysis ; smoothing ; time series ; geophysics

Quelle: Springer Online Journal Archives 1860-2000

Thema: Geologie und Paläontologie , Mathematik

Notizen: Abstract Least-squares operators with real and symmetric coefficients are shown to be equivalent to low-pass digital filters. By viewing these operators as digital filters one gains considerable insight into their properties. This in turn leads to a better understanding of their usefulness and limitations in data smoothing. It is shown that complete removal of noise from a given input time series is possible with the use of least-squares operators if spectral overlapping between signal and noise does not exist. Power-spectral analysis which provides information about the frequency composition of the input data is essential for successful application of least-squares operators.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF02080153

Permalink

	Standort	Signatur	Erwartet	Verfügbarkeit

Andere fanden auch interessant ...

Artikel (Nationallizenzen)

Volltext

Treffer 1 - 2 | 2 Treffer