Differential method’s adjustment for GNSS networks with limited access to satellite signals
Purpose. Today various methods of automatic deformation’s monitoring of engineering buildings of hydroelectric power plants (HPPs) are widely used. Namely, the method of GNSS measurements. Like all geodetic methods to study deformations, the method of GNSS measurements has several advantages and disadvantages. Since hydro power plants in most cases are located in complex terrain, it leads to a limited passing signal to receivers, which worsens the results. In addition to these conditions, simultaneously measured by three or more receivers, vectors are burdened with systematic errors.