Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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
Corrective Surfacefor GPS-levelling in Moldova
KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geodesy and Satellite Positioning.
2006 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The main objective of this thesis is the construction of a corrective surface in theMoldova area for further conversion of the geodetic heights into normal heights. For thispurpose a detailed analysis of the optimal combination of heterogeneous height data ispresented, with particular emphasis on (i) modeling systematic errors and datuminconsistencies, (ii) separation of random errors and estimation of variance componentsfor each height type, and (iii) practical considerations for modernizing vertical controlsystems. Although the theoretical relationship between geodetic, normal heights andheight anomalies is simple in nature, its practical implementation has proven to be quitechallenging due to numerous factors that cause discrepancies among the combined heightdata. In addition, variance component estimation is applied to the common adjustment ofthe heterogeneous heights. This leads to the connection between the proper modelling ofsystematic errors and datum inconsistencies with the estimated variance components.Ultimately, one of the main motivations for this work is the need to introduce moderntools and techniques, such as GPS/levelling, in establishing a vertical control. Therefore,part of this thesis is aimed at bringing to the forefront some of the key issues that affectthe achievable accuracy level of GPS/levelling. Overall, the analysis of the optimalcombination of the heterogeneous height data conducted herein provides valuable insightto be used for a variety of height related applications.

Place, publisher, year, edition, pages
2006.
Series
TRITA-GIT EX ; 06-01
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-199843OAI: oai:DiVA.org:kth-199843DiVA, id: diva2:1065588
Supervisors
Available from: 2017-01-19 Created: 2017-01-16 Last updated: 2017-01-19Bibliographically approved

Open Access in DiVA

fulltext(1578 kB)108 downloads
File information
File name FULLTEXT01.pdfFile size 1578 kBChecksum SHA-512
f85833d03e0ac818f0be9b5038beede897ac6c8fc203a46e92b09286be30492776bb04338aaaf44bcd30bed1e193902c13fcf9716ff7a9cc4ed8013062f48480
Type fulltextMimetype application/pdf

By organisation
Geodesy and Satellite Positioning
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 108 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 49 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • 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