Matches in SemOpenAlex for { <https://semopenalex.org/work/W2155796403> ?p ?o ?g. }
Showing items 1 to 71 of
71
with 100 items per page.
- W2155796403 abstract "Due to the nature of the Fourier transform geophysical data must be prepared before the transform is calculated. This preparation usually takes the form of the removal of any trend from the data combined with the padding of the data to 2N points at the data edges. However, no data preparation procedure is perfect, and the result is that problems (in the form of edge effects) appear in the filtered data. When high-pass filters (such as derivatives or downward continuation) are used then these edge effects become particularly apparent. This paper suggests three methods for the stable downward continuation of geophysical data (two of which may be combined). The first method is applied to an integrated horizontal or vertical derivative of the data rather than to the data itself. Since the derivatives can be calculated in the space domain where FFT edge effects are not present, this reduces the enhancement of the data at frequencies near the Nyquist, resulting in smaller edge effect problems. The second method measures the FFT-induced noise by comparing data that has been downward continued using both the space and frequency domain methods. The data are then compensated accordingly, and the compensated data may be downward continued to arbitrary distances that are not possible using space domain operators. The final method treats downward continuation as an inverse problem, which allows the control of both FFT-induced noise and other noise that is intrinsic to the dataset." @default.
- W2155796403 created "2016-06-24" @default.
- W2155796403 creator A5030621045 @default.
- W2155796403 creator A5059886395 @default.
- W2155796403 date "2004-12-01" @default.
- W2155796403 modified "2023-09-26" @default.
- W2155796403 title "Minimising noise problems when downward continuing potential field data" @default.
- W2155796403 cites W1624012152 @default.
- W2155796403 doi "https://doi.org/10.1071/aseg2004ab022" @default.
- W2155796403 hasPublicationYear "2004" @default.
- W2155796403 type Work @default.
- W2155796403 sameAs 2155796403 @default.
- W2155796403 citedByCount "0" @default.
- W2155796403 crossrefType "journal-article" @default.
- W2155796403 hasAuthorship W2155796403A5030621045 @default.
- W2155796403 hasAuthorship W2155796403A5059886395 @default.
- W2155796403 hasConcept C102519508 @default.
- W2155796403 hasConcept C111919701 @default.
- W2155796403 hasConcept C11413529 @default.
- W2155796403 hasConcept C115961682 @default.
- W2155796403 hasConcept C134306372 @default.
- W2155796403 hasConcept C154945302 @default.
- W2155796403 hasConcept C162307627 @default.
- W2155796403 hasConcept C19118579 @default.
- W2155796403 hasConcept C199360897 @default.
- W2155796403 hasConcept C202444582 @default.
- W2155796403 hasConcept C2778572836 @default.
- W2155796403 hasConcept C33923547 @default.
- W2155796403 hasConcept C36503486 @default.
- W2155796403 hasConcept C41008148 @default.
- W2155796403 hasConcept C75172450 @default.
- W2155796403 hasConcept C76155785 @default.
- W2155796403 hasConcept C88626702 @default.
- W2155796403 hasConcept C9652623 @default.
- W2155796403 hasConcept C99498987 @default.
- W2155796403 hasConceptScore W2155796403C102519508 @default.
- W2155796403 hasConceptScore W2155796403C111919701 @default.
- W2155796403 hasConceptScore W2155796403C11413529 @default.
- W2155796403 hasConceptScore W2155796403C115961682 @default.
- W2155796403 hasConceptScore W2155796403C134306372 @default.
- W2155796403 hasConceptScore W2155796403C154945302 @default.
- W2155796403 hasConceptScore W2155796403C162307627 @default.
- W2155796403 hasConceptScore W2155796403C19118579 @default.
- W2155796403 hasConceptScore W2155796403C199360897 @default.
- W2155796403 hasConceptScore W2155796403C202444582 @default.
- W2155796403 hasConceptScore W2155796403C2778572836 @default.
- W2155796403 hasConceptScore W2155796403C33923547 @default.
- W2155796403 hasConceptScore W2155796403C36503486 @default.
- W2155796403 hasConceptScore W2155796403C41008148 @default.
- W2155796403 hasConceptScore W2155796403C75172450 @default.
- W2155796403 hasConceptScore W2155796403C76155785 @default.
- W2155796403 hasConceptScore W2155796403C88626702 @default.
- W2155796403 hasConceptScore W2155796403C9652623 @default.
- W2155796403 hasConceptScore W2155796403C99498987 @default.
- W2155796403 hasLocation W21557964031 @default.
- W2155796403 hasOpenAccess W2155796403 @default.
- W2155796403 hasPrimaryLocation W21557964031 @default.
- W2155796403 hasRelatedWork W2028262081 @default.
- W2155796403 hasRelatedWork W2031245517 @default.
- W2155796403 hasRelatedWork W2060051382 @default.
- W2155796403 hasRelatedWork W2072543852 @default.
- W2155796403 hasRelatedWork W2322013984 @default.
- W2155796403 hasRelatedWork W2366703348 @default.
- W2155796403 hasRelatedWork W2371931285 @default.
- W2155796403 hasRelatedWork W2389565802 @default.
- W2155796403 hasRelatedWork W2736982822 @default.
- W2155796403 hasRelatedWork W92188072 @default.
- W2155796403 isParatext "false" @default.
- W2155796403 isRetracted "false" @default.
- W2155796403 magId "2155796403" @default.
- W2155796403 workType "article" @default.