Results 181 to 190 of about 3,825 (195)

Reproducing Estimators via Least-Squares: An Optimal Alternative to the Helmert Transformation

2003
One of the classical procedures for geodetic network densification consists in a free net adjustment, followed by a so-called “Helmert transformation” with respect to the fiducial point set which is kept unchanged. Here we show that this approach is not optimal in terms of the Mean-Squared-Error (MSE) risk, and present a direct derivation, based on the
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On the Use of the Helmert Transformation, and its Applications in Panel Data Econometrics

Journal of Econometric Methods, 2023
Gueorgui Kolev
exaly  

A note on the Helmert transformation

Communications in Statistics - Theory and Methods, 2022
Reza Farhadian, Brenton R Clarke
exaly  

Simultaneous Helmert transformations among multiple frames considering all relevant measurements

Measurement Science and Technology, 2018
Guobin Chang, Peng Lin, Hefang Bian, Jingxiang Gao   +3 more
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Helmert-Transformation

1984
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Iterative solution of Helmert transformation based on a unit dual quaternion

Acta Geodaetica Et Geophysica, 2018
Huaien Zeng, Guobin Chang, Haiqing He
exaly  

The non-linear 2D symmetric helmert transformation: An exact non-linear least-squares solution

Bulletin Geodesique, 2014
Peter J G Teunissen
exaly  

A generalization of the analytical least-squares solution to the 3D symmetric Helmert coordinate transformation problem with an approximate error analysis

Advances in Space Research, 2017
Guobin Chang, Tianhe Xu, Guoliang Chen
exaly  

Contribution to the Geometry of the Helmert Transformation

2006
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Representation of the rotation parameter estimation errors in the Helmert transformation model

Survey Review, 2018
exaly