Bernese GNSS Software Version 5.2 Tutorial

7.4 Simulation of GNSS Observations7.4 Simulation of GNSS ObservationsThe Bernese GNSS Software provides the simulation tool GPSSIM ("Menu>Service>Generatesimulated observation data"). It generates synthetic GNSS (i.e., GPS and GLONASS) observationsfor terrestrial static or kinematic stations as well as for LEO. Code and phasezero difference observation files can be created based on an observation scenario definedby• GNSS satellite geometry given by a standard orbit and• a set of receivers with positions from a coordinate file, kinematic positions, or a LEOstandard orbit file.7.4.1 Simulation of GNSS ObservationsIt is important that you remove all previously existing observation files for this session fromthe OBS directory of your campaign before your start to simulate observations. Otherwiseyou run into the danger of mixing your current set of simulated observations with othermeasurements:bern52@carina:~ > rm ${P}/INTRO/OBS/????2070.CZ?bern52@carina:~ > rm ${P}/INTRO/OBS/????2070.PZ?The input files for the generation of synthetic GNSS observations with program GPSSIM("Menu>Service>Generate simulated observation data") are defined in the first input panel:Select EXAMPLE.ABB in option “Abbreviation table” in the next panel “GPSSIM 1.1: GeneralFiles”.Bernese GNSS Software, Version 5.2 Page 133