Uncertainty in two-stage measurement: Explanation using simulation studies

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25530%2F18%3A39913603" target="_blank" >RIV/00216275:25530/18:39913603 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Uncertainty in two-stage measurement: Explanation using simulation studies
Original language description
In geodesy we often estimate coordinates of a two-dimensional point in a model of two-stage measurements. The points from the national trigonometric network have different accuracy, and independence is not met. We encounter situations where we cannot get quality results even by repeating measurements. The dependency among old points and their accuracy may have a considerable impact on the estimated coordinates of new points. To examine the impact, this paper presents simulation methods describing the uncertainty of estimated points. The main goal of this paper is to study the uncertainty of Least Squares Estimators in one surveying problem. This is a situation where an object should be very precisely connected to the government network. We draw attention to the fact that the Least Squares Method can give non-admissible geometric representation of an object's estimated coordinates. The main objective is to compare outputs from the two-stage regression model and from simulation studies.
Czech name
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Czech description
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Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
30th European Modeling and Simulation Symposium, EMSS 2018 : proceedings
ISBN
978-88-85741-06-5
ISSN
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e-ISSN
neuvedeno
Number of pages
7
Pages from-to
336-342
Publisher name
Dime University of Genoa
Place of publication
Janov
Event location
Budapešť
Event date
Sep 17, 2018
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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