Proposed methodology of elaborating GNSS satellite observations with the use of POZGEO d service to install points of measurement control network

key words: network of GPS vectors, outliers observations, adjustment of the GPS vectors

Summary:

This paper presents the proposal of the methodology of elaborating static satellite observations executed when installing points of measurement control net-work from the moment of obtaining satellite observations from the receiver to gaining final coordinates in the currently mandatory frames of reference.
It is an elementary geodetic task on which many works in the broad scope of activity depend (measurements, designs, execution of engineering objects, updating of maps, building spatial and geographic information systems).
The elaboration of observations began with the processing of binary obser-vations directly from GNSS satellite receiver used for observations saved in a uni-versal format of Rinex files. At the second stage, the goal was to refer the executed control measurements to the uniform frames of reference. Observations were sup-plemented with data from referential stations of the ASG-EUPOS system. Then on the basis of post-processing, all satellite observations were processed for the rele-vant pairs of points and vectors of Cartesian coordinates (∆X, ∆Y, ∆Z) were cal-culated with errors in their designation. At the next stage, a detailed diagnosis of vectors was conducted for the actual quality evaluation of the obtained observation material in order to eliminate vectors burdened with large errors. Following these activities, vectors of GPS network were equalised in two stages. At the last stage, the results were transformed to the required systems of coordinates. Independent elaboration of observations was conducted with the use of automatic POZGEO service in the ASG-EUPOS system in order to control the obtained results. The paper contains a list of results obtained in the autonomous elaboration with the use of POZGEO-D service and a comparison of the results of observations made in the automatic POZGEO service.

Citation:

Siejka Z. 2012, vol. 9. Proposed methodology of elaborating GNSS satellite observations with the use of POZGEO d service to install points of measurement control network. Infrastruktura i Ekologia Terenów Wiejskich. Nr 2012, vol. 9/ 02 (2 (Jun 2012))