Bernese GNSS Software Version 5.2 Tutorial

6.4 Compute the Reduced Solution of the SessionsIf reliable velocities for all stations are available they can be introduced:You may check the influence on the repeatability by your own.This output may be used for quality assessment. Stations with a problem in oneor more sessions can be identified and excluded from the final ADDNEQ2 solution byadding them to section TYPE 003: STATION PROBLEMS in the station information file(${P}/INTRO/STA/EXAMPLE.STA). All parameters of these stations will be pre–eliminatedbefore the normal equations are stacked and, therefore, also before the solution is computed.6.4 Compute the Reduced Solution of the SessionsIf one or more stations have to be excluded from the session solution or if the datumdefinition of the solution is still not acceptable, the final solution of the session has to bere–computed by repeating the ADDNEQ2 in Section 6.2. Finally, the result files for thefinal solution of the session are:${P}/INTRO/SOL/FIN$YD+0.NQ0,${P}/INTRO/STA/FIN$YD+0.CRD, and${P}/INTRO/ATM/FIN$YD+0.TRP.It is preferable for the velocity estimation to have smaller normal equation files containingonly the coordinate parameters for each session. In addition, we generate a coordinateSolution INdependent EXchange format (SINEX) file (in NEQ representation) as the finalsolution of the day, so the troposphere parameters have to be pre–eliminated before thesolution is computed. We introduce the station coordinates (${P}/INTRO/STA/FIN$YD+0.CRD) obtained with the minimum constraint solution in the previous run of ADDNEQ2and constrain the solution to these coordinates.To generate these reduced NQ0 files and the SINEX file, the execution of ADDNEQ2 hasto be repeated with the following changes in the input options:Bernese GNSS Software, Version 5.2 Page 89