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Sequential Tikhonov Regularization: an alternative way for inverting satellite gradiometric data
KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geodesy and Geoinformatics. (Geodesy)
2011 (English)In: Zfv, ISSN 1618-8950, Vol. 136, no 2, 113-121 p.Article in journal (Refereed) Published
Abstract [en]

Numerous regularization methods exist for solving the ill-posed problem of downward continuation of satellite gravity gradiometry (SGG) data to gravity anomaly at sea level. Generally, the use of a dense set of data is recommended in the downward continuation. However, when such dense data are used some of the regularization methods are not efficient and applicable. In this paper, a sequential way of using the Tikhonov regularization is developed for solving large systems and compared to methods of direct truncated singular value decomposition and iterative methods of range restricted minimum residual, algebraic reconstruction technique,  and conjugate gradient for recovering gravity anomaly at sea level from the SGG data. Numerical studies show that the sequential Tikhonov regularization is comparable to the conjugate gradient and yields similar result.

 

Place, publisher, year, edition, pages
Germany: Wissner Verlag , 2011. Vol. 136, no 2, 113-121 p.
Keyword [en]
Sequential Tikhonov Regularization: an alternative way for inverting satellite gradiometric data
National Category
Geosciences, Multidisciplinary
Identifiers
URN: urn:nbn:se:kth:diva-61307Scopus ID: 2-s2.0-79955132731OAI: oai:DiVA.org:kth-61307DiVA: diva2:478905
Projects
Project 98:09: 1 funded by the Swedish National Space Board
Note

Qc 20120117

Available from: 2012-01-17 Created: 2012-01-17 Last updated: 2014-09-16Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf