Analysis of the Application of GIS in Surveying and Mapping Engineering

2021 ◽  
Keyword(s):  
Application Of Gis ◽  
Surveying And Mapping

scholarly journals Designing GNSS HUMGAdj software package for surveying and mapping

2021 ◽  
Vol 1809 (1) ◽  
pp. 012038
Author(s):  
N G Trong ◽  
N V Nghia ◽  
N T Cuc ◽  
D N Chinh ◽  
N V Cuong ◽  
...  
Keyword(s):  
Software Package ◽  
Surveying And Mapping

Application of Fitting Estimation Method in GPS Height Fitting

2013 ◽  
Vol 694-697 ◽  
pp. 2545-2549 ◽  
Author(s):  
Qian Wen Cheng ◽  
Lu Ben Zhang ◽  
Hong Hua Chen
Keyword(s):  
Least Squares ◽  
Estimation Method ◽  
Least Square ◽  
Least Squares Collocation ◽  
Normal Height ◽  
Geodetic Height ◽  
The Given ◽  
Surveying And Mapping

The key point researched by many scholars in the field of surveying and mapping is how to use the given geodetic height H measured by GPS to obtain the normal height. Although many commonly-used fitting methods have solved many problems, they all value the pending parameters as the nonrandom variables. Figuring out the best valuations, according to the traditional least square principle, only considers its trend or randomness, which is theoretically incomprehensive and have limitations in practice. Therefore, a method is needed not only considers its trend but also takes randomness into account. This method is called the least squares collocation.

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