Analysis of errors of geodetic vertical network by different adjustment models
There are different methods to estimate normal heights and to evaluate accuracy in geodesy. In this article we analyse adjective parameters and conditional equation by using vertical network adjustment procedure to eliminate levelling measurements systematic errors. Analysing the introducing effect...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Vilnius Gediminas Technical University
2012-08-01
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| Series: | Geodesy and Cartography |
| Subjects: | |
| Online Access: | https://btp.vgtu.lt/index.php/GAC/article/view/10922 |
| Summary: | There are different methods to estimate normal heights and to evaluate accuracy in geodesy. In this article we analyse adjective parameters and conditional equation by using vertical network adjustment procedure to eliminate levelling measurements systematic errors. Analysing the introducing effect of initial data errors to adjustment values and to accuracy of parameters, also arbitrary and non-arbitrary networks adjustment variants. Adjustment of networks is applied by the least-squares method, when there are estimate adjustment values and accuracy of parameters in co-variations matrix form.
Article in Lithuanian
Santrauka. Geodezineje praktikoje taikomi ivairūs normalinio aukščio nustatymo ir tikslumo ivertinimo metodai. Straipsnyje analizuojamas papildomu parametru ir salyginiu lygčiu taikymas vertikaliojo tinklo išlyginimo procedūrose niveliavimo matavimu sistemingosioms klaidoms eliminuoti. Nagrinejama pradiniu duomenu klaidu itaka išlygintuju dydžiu ir parametru tikslumui, nelaisvojo ir laisvojo tinklo išlyginimo variantai. Tinklo išlyginimas atliekamas mažiausiuju kvadratu metodu, išlygintu dydžiu ir parametru tikslumas ivertinamas kovariaciju matricu pavidalu.
Reikšminiai žodžiai: vertikalusis tinklas, atsitiktinės ir sistemingosios klaidos, mažiausiųjų kvadratų metodas, kovariacijų matrica. |
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| ISSN: | 2029-6991 2029-7009 |