нівелювання

Prediction of geoid heights using the MLP ANN method at a regional scale

The aim of this study is to construct a regional geoid model using the MLP ANN method and to assess its accuracy with GNSS–levelling data for the Vinnytsia region, both within and without the application of the “Remove–Compute–Restore” procedure. Method. The construction of a geoid model using artificial neural networks (ANN) is a modern approach that integrates classical geodetic methods with intelligent data processing technologies. The main idea is to apply machine learning algorithms to establish nonlinear relationships between various input geophysical parameters and the geoid height.

High precision dual line leveling research

The aim of this article is to investigate the accuracy of dual line leveling, and develop a methodology for its execution to enhance the precision of elevation determination by accounting for vertical refraction and controlling the non-horizontality of the leveling beam. Methodology. Considering that digital levels can measure distances to the rod and account for the non-horizontality of the beam and vertical refraction during measurements, we propose a method of dual line leveling.