Backward smoothing for precise GNSS applications
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00231405" target="_blank" >RIV/68407700:21110/15:00231405 - isvavai.cz</a>
Alternative codes found
RIV/00025615:_____/15:#0002208
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0273117715005220" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0273117715005220</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.asr.2015.07.020" target="_blank" >10.1016/j.asr.2015.07.020</a>
Alternative languages
Result language
angličtina
Original language name
Backward smoothing for precise GNSS applications
Original language description
The Extended Kalman filter is widely used for its robustness and simple implementation. Parameters estimated for solving dynamical systems usually require certain time to converge and need to be smoothed by a dedicated algorithms. The purpose of our study was to implement smoothing algorithms for processing both code and carrier phase observations with Precise Point Positioning method. We implemented and used the well known Rauch?Tung?Striebel smoother (RTS). It has been found out that the RTS suffer from significant numerical instability in smoothed state covariance matrix determination. We improved the processing with algorithms based on Singular Value Decomposition, which was more robust. Observations from many permanent stations have been processedwith final orbits and clocks provided by the International GNSS service (IGS), and the smoothing improved stability and precision in every cases. Moreover, (re)convergence of the parameters were always successfully eliminated.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DE - Earth magnetism, geodesy, geography
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP209%2F12%2F2207" target="_blank" >GAP209/12/2207: Development of analyses using Global Navigation Satellite System data in support of troposphere monitoring</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced in Space Research
ISSN
0273-1177
e-ISSN
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Volume of the periodical
56
Issue of the periodical within the volume
8
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
1627-1634
UT code for WoS article
000362604300006
EID of the result in the Scopus database
2-s2.0-84938234069