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Precise levelling in crossing river over 5 km using total station and GNSS
The trigonometric levelling using the simultaneous reciprocal method has been proved to meet the precision of second order levelling. But this method is invalid once the distance of river crossing is beyond 3.5 km due to the difficulty of target recognition at such a long distance. To expand the ava...
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| Publicado no: | Sci Rep |
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| Main Authors: | , |
| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
Nature Publishing Group UK
2021
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC8021589/ https://ncbi.nlm.nih.gov/pubmed/33820930 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/s41598-021-86929-1 |
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